Hookstamp / Help

Let’s get you back to your Library.

Help with the extension, your purchase, or a moment that won’t play.

拡張機能・購入・再生でお困りの場合はこちらをご確認ください。

Contact / お問い合わせ

For purchase issues, provide your approximate purchase date, the email used at checkout, and a description of the issue.

購入のお問い合わせには、おおよその購入日・決済時のメールアドレス・問題の内容をお知らせください。

Never send your full card number, password, verification code, or Stripe secret/API key.

カード番号・パスワード・認証コード・APIの秘密鍵は送らないでください。

Supported topics

Purchase not reflected
Restore Purchase
Verification email not arriving
Refund request
Duplicate purchase
Bug report
Chrome extension issue

Common questions

Purchase not reflected / Restore Purchase

Use Restore Purchase in Hookstamp with the email used at checkout. Enter the code sent to that address. If you used a different email or made a typo, contact support before buying again.

決済時のメールアドレスで「購入を復元」を実行し、届いたコードを入力してください。メールアドレス違いや入力ミスが疑われる場合は、再購入する前にお問い合わせください。

Verification email not arriving

Check your spam folder and the email address you entered. Avoid repeatedly requesting codes in quick succession. If the problem continues, contact support without sharing any verification code.

Refund request or duplicate purchase

Read the Refund Policy and contact support with the purchase details listed above. You do not need to buy again to request help.

Bug report or Chrome extension issue

Describe the steps to reproduce the problem, expected and actual behavior, and your Chrome and Hookstamp versions. Include a screenshot only if useful, and remove personal information first. Never send your full Library backup unless specifically needed and agreed for support.

A saved video no longer plays

Open the original YouTube video to check its availability and your access. Hookstamp does not keep a downloaded copy and cannot bypass private, deleted, or restricted videos.