# Submit refund instruction

`POST /devices/{serialNumber}/refund-instructions`

Use this method to submit an instruction request to initiate a refund on a payment device.  

In the request, include the refund amount and currency.  

If the request is successful, our gateway returns information about the refund instruction and a refundInstructionId, which you need for the following methods:
- [Retrieve refund instruction](https://docs.payroc.com/api/schema/payroc-cloud/refund-instructions/retrieve) - View the details of the refund instruction.
- [Cancel refund instruction](https://docs.payroc.com/api/schema/payroc-cloud/refund-instructions/delete) - Cancel the refund instruction.