Reference
PAYMENT_NOT_REFUNDABLE
Payment cannot be refunded
Payment cannot be refunded
HTTP status 409 Conflict, code PAYMENT_NOT_REFUNDABLE.
What it means#
The payment did not succeed, or its provider does not allow a refund of it.
What to do#
Only a succeeded payment can be refunded. Check the payment's status.
On the wire#
Every error response carrying this code names this page in error.moreInfo,
with the request id in the query string. See Error codes for
the response shape and the list of every code.