If your refund is approved, the funds are applied to the same payment method that you used to buy the item.
Here's how long it takes for a refund to appear on your account or statement:
Store credit: Refunds may appear in your Apple ID balance within 48 hours.
Mobile phone billing: Refunds may show up in your statement within 60 days. Processing time can vary depending on your carrier. You can contact your carrier for an update.
Credit and debit cards, Apple Pay, Apple Cash, and other payment methods: Refunds may appear in your statement within 30 days. If you don’t see the refund after 30 days, contact your financial institution.
Check the status of a refund from Apple ⇢
Check the status of a refund for apps or content that you bought from Apple - Apple Support