Output

Unfortunately, there's no way to go back from that screen — this is a known behavior, and reinstalling the app won't change it because the registration state is tied to your account/phone number, not the app installation. Once you've skipped the earlier entry step, the flow requires credit-card entry to proceed.

Here's the recommended way to fix it (per our corporate registration guidance, /sources/en/runbooks/corporate.md:80 and /sources/ja/runbooks/corporate.md:65-69):

1. Enter a credit card once to complete account creation. A personal card is fine — it's only temporary, since you'll delete the account right after.
2. Delete the account yourself from within the app: Account > Settings > Delete Account (/sources/en/runbooks/corporate.md:120).
3. Re-register from scratch in this order: phone number → secret question + email address. This time, enter your company-domain email address — entering a specific (company) domain lets you skip credit-card registration entirely, which is what enables corporate registration.

A couple of helpful notes:
- You can register an account and make charging reservations even while the email is still unverified, so an unverified email won't block basic use (/sources/en/runbooks/corporate.md:120).
- Corporate reservations are normally handled through the Dashboard rather than the app, so once your corporate registration is set up with the company email, card registration isn't needed for that flow.

If you'd rather not register any card at all, or if anything fails during the delete/re-register steps, please contact support with a screenshot of the screen you're on and we can look into it further.

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 3,
    "relevance": 4,
    "consistency": 4,
    "safety": 5,
    "style": 4
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 3,
      "relevance": 4,
      "consistency": 4,
      "safety": 5,
      "style": 4
    },
    "total": 20,
    "reasons": [
      "Omits the primary fix: deleting the account directly from the Credit Card Registration screen via the three-dot menu.",
      "Gives wrong in-app deletion path (Account > Settings instead of Account > Profile).",
      "Covers alternative card-entry flow, company email, domain-based card skip, and unverified-email note.",
      "Adds unsupported claim that corporate reservations go through the Dashboard.",
      "Re-registration steps omit password and add an unverified 'secret question' step.",
      "Correctly explains reinstalling won't help since state is tied to the account.",
      "Accuracy score below minimum (3 < 4).",
      "Critical answer points are missing (2)."
    ],
    "missing_points": [
      "Delete account from the Credit Card Registration screen: tap three-dot menu (top-right), select 'Delete Account', then re-register from the beginning.",
      "Correct deletion path is Account > Profile > Delete Account, not Account > Settings.",
      "Re-registration order should include password after email address."
    ],
    "critical_missing_points": [
      "Delete account from the Credit Card Registration screen: tap three-dot menu (top-right), select 'Delete Account', then re-register from the beginning.",
      "Correct deletion path is Account > Profile > Delete Account, not Account > Settings."
    ],
    "minor_missing_points": [
      "Re-registration order should include password after email address."
    ],
    "covered_points": [
      "No way back; reinstalling won't help since state is tied to the account.",
      "Alternative: enter card to complete registration, delete account in-app, re-register.",
      "Use company email address for corporate registration.",
      "Certain email domains allow skipping credit card registration.",
      "Account and charging reservations work even with unverified email."
    ],
    "constraint_violations": [],
    "notes": "Alternative flow and email-domain guidance covered, but the direct three-dot deletion method is missing and the profile path is wrong."
  },
  "autoQaScore": 4,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 4,
  "finalVerdict": "fail"
}

Output

申し訳ありません。回答に必要な情報を取得できませんでした。改めて情報を確認のうえ、再回答いたします。

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 1,
    "relevance": 1,
    "consistency": 3,
    "safety": 5,
    "style": 4
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 1,
      "relevance": 1,
      "consistency": 3,
      "safety": 5,
      "style": 4
    },
    "total": 14,
    "reasons": [
      "回答が取得失敗の謝罪のみで、解決手順が一切含まれていない",
      "アカウント削除による再登録手順が未回答",
      "代替手順（登録完了後にプロフィールから削除）も未回答",
      "法人登録時の会社メールアドレスの注意点も未回答",
      "丁寧な日本語で謝罪は一貫しているが、質問に答えていない",
      "Accuracy score below minimum (1 < 4).",
      "Relevance score below minimum (1 < 4).",
      "Total score below minimum (14 < 20).",
      "Critical answer points are missing (6)."
    ],
    "missing_points": [
      "三点メニュー→アカウントを削除→最初から再登録の手順",
      "カード入力で登録完了後、プロフィールから削除する代替手順",
      "再登録時の入力順（電話番号・メール・パスワード）",
      "法人登録は会社のメールアドレスを使用",
      "特定ドメインメールではカード登録をスキップ可能な場合あり",
      "メール未認証でもアカウント登録・充電予約は可能"
    ],
    "critical_missing_points": [
      "三点メニュー→アカウントを削除→最初から再登録の手順",
      "カード入力で登録完了後、プロフィールから削除する代替手順",
      "再登録時の入力順（電話番号・メール・パスワード）",
      "法人登録は会社のメールアドレスを使用",
      "特定ドメインメールではカード登録をスキップ可能な場合あり",
      "メール未認証でもアカウント登録・充電予約は可能"
    ],
    "minor_missing_points": [],
    "covered_points": [],
    "constraint_violations": [],
    "notes": "モデルは情報取得失敗を返答したのみ。期待される手順が一切含まれず、重大欠落によりfail。"
  },
  "autoQaScore": 3,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 3,
  "finalVerdict": "fail"
}

Output

Short answer: there is no "back" button on that screen, and reinstalling won't help because the registration state is tied to your account on PowerX's side, not to the app on your phone (uninstalling the app does not delete the account — /sources/en/runbooks/membership.md:234).

What's happening: once the registration flow advances past the email / secret-question step without an email address entered, credit-card entry becomes mandatory and the flow will not return to the earlier step. Note that the documented cause is skipping the email (secret question + email address) entry — the postal code, gender and vehicle fields are not listed as triggers.

Workaround used by support (runbook cases CS-080 / CS-120 / CS-133, /sources/en/runbooks/corporate.md:65-69 and :93-111):

1. On the stuck card screen, enter card details once to finish creating the account. A personal card is acceptable here, since this account will be deleted anyway.
2. Delete that account yourself: open the app > Account > Settings > Delete Account (/sources/ja/public-help/articles/22879527604249.md:20). Deleting erases the account information, including the card you just added.
3. Re-register in this order: phone number, then secret question + email address — and enter your company-domain email address at that step. Entering a company/specific domain is what allows credit-card registration to be skipped for a corporate contract.
4. You do not need the email verification to finish before using the service: account registration and charging reservations are possible while the email is still unverified.

Two caveats worth confirming with PowerX support before you redo the flow:
- The guidance says "a specific domain" enables the card skip but does not state which domains qualify, so verify that your company domain is accepted.
- If you happen to hold a PowerX First membership, stop automatic renewal (Account > PowerX First management > Stop automatic renewal) before deleting the account.

If the card screen itself rejects the card (e.g. "failed to register card" errors), that is a separate issue: recheck card number and security code, note that prepaid cards and debit cards are not accepted, that iOS 15 has a known problem blocking card registration, and tell support whether the button at the bottom of the card registration screen is visible.

One clarification: this stuck-screen scenario is not covered by the public Help Center; the steps above come from QA-authored operational runbooks, so treat them as the working procedure to confirm with a support agent rather than a published policy. I can't reset or roll back your registration myself.

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 3,
    "relevance": 4,
    "consistency": 4,
    "safety": 4,
    "style": 4
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 3,
      "relevance": 4,
      "consistency": 4,
      "safety": 4,
      "style": 4
    },
    "total": 19,
    "reasons": [
      "Covers alternative enter-card-then-delete workaround.",
      "Covers company email and domain-based card skip.",
      "Covers unverified email reservations.",
      "Omits direct delete from stuck credit-card screen via three-dot menu.",
      "Omits password step in re-registration sequence.",
      "Adds extra runbook caveats and card-error details.",
      "Accuracy score below minimum (3 < 4).",
      "Total score below minimum (19 < 20).",
      "Critical answer points are missing (1).",
      "Too many minor missing points (2 > 1)."
    ],
    "missing_points": [
      "Delete account directly from Credit Card Registration screen using three-dot menu.",
      "Password step when re-registering.",
      "Expected Account > Profile path wording."
    ],
    "critical_missing_points": [
      "Delete account directly from Credit Card Registration screen using three-dot menu."
    ],
    "minor_missing_points": [
      "Password step when re-registering.",
      "Expected Account > Profile path wording."
    ],
    "covered_points": [
      "Enter card to complete registration then delete account.",
      "Re-register with phone and company email.",
      "Company/specific domain may skip card registration.",
      "Unverified email can still register and reserve charging."
    ],
    "constraint_violations": [],
    "notes": "Alternative workaround is useful, but direct stuck-screen delete and password step are missing."
  },
  "autoQaScore": 4,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 4,
  "finalVerdict": "fail"
}

Output

クレジットカード登録画面から前に戻れないのは、メールアドレス入力をスキップしたための仕様です。アプリ側の不具合ではないため、再インストールでは解決しません（登録状態は端末ではなくアカウント側に保持されます）。

**仕様**
秘密の質問ステップでメールアドレスを入力せずに進むと、以降はクレジットカード情報の入力が必須となり、カード画面からメールアドレス入力へは戻せません（ja/runbooks/corporate.md:65-69）。

**復旧手順**
1. いったんクレジットカード情報を入力して、アカウント登録を完了させます。このとき個人名義のカードでも構いません。登録直後は一般会員扱いで会費は発生しません（従量課金のみ）。
2. アプリ内でご自身でアカウントを削除します。手順は「アカウント」→「設定」→「アカウントの削除」です（ja/public-help/articles/22879527604249.md:20、ja/runbooks/corporate.md:97）。
3. 削除後、あらためて再登録します。電話番号入力 → 秘密の質問＋メールアドレス入力、の順に進め、ここで会社ドメインのメールアドレスを入力するとクレジットカード登録をスキップできます（ja/runbooks/corporate.md:97、ja/runbooks/corporate.md:111）。

**補足**
- メールアドレスが未認証のままでも、アカウント登録や充電予約は可能です（ja/runbooks/corporate.md:97）。
- アカウント削除を行うと登録情報・利用履歴は消去されます。すでに予約等を入れている場合は、削除前に内容をご確認ください。
- どのドメインであればスキップ可能かの具体的な一覧は、手元の資料に記載がありません。会社ドメインのアドレスを入力してください。
- 上記手順でもカード画面から進めない・カード認証そのものが通らない場合は、お問い合わせフォームまたはお電話でご連絡ください。その際、カード登録画面下部にボタンが見えるか、見える場合はボタンの色をお知らせいただけると調査がスムーズです（ja/public-help/articles/24904289203097.md:37-39）。

なお、この復旧手順は運用ガイダンス（最終確認 2026年8月17日）に基づくもので、アプリの改修により画面構成が変わっている可能性があります。

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 3,
    "relevance": 4,
    "consistency": 4,
    "safety": 5,
    "style": 4
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 3,
      "relevance": 4,
      "consistency": 4,
      "safety": 5,
      "style": 4
    },
    "total": 20,
    "reasons": [
      "カード画面から三点メニューで削除する手順が欠落",
      "削除経路がプロフィールではなく設定と記載",
      "再登録時のパスワード入力順が明示されていない",
      "会費や個人カード可などの追加情報は期待回答外",
      "Accuracy score below minimum (3 < 4).",
      "Critical answer points are missing (1)."
    ],
    "missing_points": [
      "画面右上の三点メニューからアカウントを削除する手順",
      "再登録時のパスワード入力順の明示"
    ],
    "critical_missing_points": [
      "画面右上の三点メニューからアカウントを削除する手順"
    ],
    "minor_missing_points": [
      "再登録時のパスワード入力順の明示"
    ],
    "covered_points": [
      "カード情報入力後にアカウント削除して再登録",
      "会社ドメインでカード登録をスキップできる可能性",
      "未認証メールでも登録・充電予約が可能"
    ],
    "constraint_violations": [],
    "notes": "代替手順はあるが、カード画面からの直接削除手順が欠落し、経路や再登録詳細も不完全。"
  },
  "autoQaScore": 4,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 4,
  "finalVerdict": "fail"
}