Failed refund

After you request a refund you'll receive an email update within 48 hours about whether your refund has been granted. If your request is granted, the time it takes for the money to appear on your account or statement depends on the payment method. Refunds go back to the method used to make the payment originally.

- Store credit: 48 hours

- Mobile phone billing: Up to 60 days

- Other payment methods: Up to 30 days for it to appear on a statement.

You can also sign into https://reportaproblem.apple.com to check if the status of your item is "Refunded".

If you want to read what Apple actually says, read this document: 'How long refunds from the App Store or other Apple services take' --> https://support.apple.com/HT210904

If you need to contact Apple about this, click on this link --> https://support.apple.com/choose-country-region/media-services and choose a path that gets assistance from iTunes Store staff.

If you have received a mail from Apple attaching the invoice of your refund then the refund would definitely reflect in your bank account but it does take few days time. So just wait for a few days