How do I get a refund with Contactless Mobile?
If you paid with Contactless Mobile, you’ll usually need to use your phone to get a refund too. This is because Contactless Mobile has its own account number, and that number will show on your receipt.
Let the retailer know that the refund will be made via Contactless Mobile and hold your phone over the reader, just as you did when you paid. If the refund is for an amount over £45, you may need to enter your normal card PIN on your device.
This process may vary slightly from retailer to retailer.