My refund from the Epic Games Store was approved, can I cancel it?
When a refund is processed by using the self-service refund tool or by contacting Player Support, it cannot be reversed. If you want to access the title or content that was refunded, you will need to purchase it again.
If a refund was processed but you did not receive the funds back to your payment method yet, please check the article Why haven't I received my refund from Fortnite or Epic Games yet?