---
title: "Claim Unsolicited Refund"
method: POST
path: "/v1/issuing/transactions/unsolicited_refund/release"
tags: ["Transactions"]
---

# Claim Unsolicited Refund

`POST /v1/issuing/transactions/unsolicited_refund/release`

<a href="/card-issuance/v1.6/guide/card-products" style={{display:'inline-block',padding:'2px 10px',borderRadius:'9999px',fontSize:'12px',fontWeight:600,lineHeight:'18px',background:'#EEF2FF',color:'#4338CA',border:'1px solid #C7D2FE',textDecoration:'none'}}>Business Visa only</a>

Raise a claim to release an unsolicited refund that UQPAY intercepted, so it posts to the cardholder. An unsolicited refund is one the card network delivers without a matching original purchase. Use this when a merchant's refund against your original authorization has not arrived.

A `SUCCESS` response only means the claim was accepted for asynchronous processing; it does not mean the refund has posted.

## Headers

- `x-on-behalf-of` string
- `x-idempotency-key` string, uuid

## Request body

- object
  - `related_transaction_id` string, required — The original authorization's transaction identifier that the unsolicited refund is matched against. Use the authorization's `transaction_id`, not its `short_reference_id`.
  - `remark` string — Optional note describing the claim, stored with the request.

## Response `200`

OK - The claim was accepted for asynchronous processing.

- object
  - `request_status` 'SUCCESS' — Request status.

---

[API](https://skmtc.dev/uqpay/apis/authentication-api.md) · [All operations](https://skmtc.dev/uqpay/apis/authentication-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/uqpay/authentication-api/revisions/cef532a10777/schema)