> ## Documentation Index
> Fetch the complete documentation index at: https://developers.uqpay.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Claim Unsolicited Refund

> <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.




## OpenAPI

````yaml /card-issuance/v1.6/issuing.yaml post /v1/issuing/transactions/unsolicited_refund/release
openapi: 3.0.2
info:
  title: Issuing API
  version: 0.0.1
  description: >
    UQPAY Issuing API allows you to issue virtual cards, manage cardholders, and
    monitor card transactions.


    ## What you can do

    - Create and manage virtual cards (issue, activate, freeze, cancel)

    - Onboard and verify cardholders with KYC

    - Set spending limits and card controls

    - Recharge and withdraw card balances

    - Query card transactions and account balances

    - Transfer funds between issuing accounts

    - Generate and download reports


    ## Authentication

    All requests require a valid auth token obtained via the [Access
    Token](/account-center/v1.6/api-reference/access-token) endpoint. Include
    the token in the `x-auth-token` header.


    ## Idempotency

    POST requests support the `x-idempotency-key` header to safely retry without
    creating duplicate resources.
  contact:
    name: UQPAY Support Team
    url: https://www.uqpay.com/support
    email: support@uqpay.com
  license:
    name: Proprietary
    url: https://www.uqpay.com/legal/api-terms
  termsOfService: https://www.uqpay.com/legal/terms
  x-api-id: uqpay-issuing-api-v1.6.0
  x-categories:
    - Card Issuing
    - Transaction Processing
  x-features:
    - Virtual Card Issuance
    - Real-time Processing
    - Webhook Notifications
    - Comprehensive Reporting
    - Transaction Monitoring
servers:
  - url: https://api-sandbox.uqpaytech.com/api
    description: Sandbox base URL.
  - url: https://api.uqpay.com/api
    description: Production base URL.
security: []
tags:
  - name: Card Lifecycle
    description: >-
      Create cards and manage their full lifecycle — issue, retrieve, update,
      activate, assign, and change status.
  - name: Card Secure Data
    description: >-
      Access sensitive card data (PAN, CVV) through the PCI-compliant endpoint
      or a tokenized iframe. Availability depends on your PCI status, not the
      card product.
  - name: Card Funding
    description: Load and unload a card's stored balance for prepaid-style cards.
  - name: Card PIN
    description: >-
      Set and manage card PINs. `reset-pin` covers physical cards;
      `manage-card-pin` covers virtual cards.
  - name: Card Add-ons
    description: >-
      Product-specific card capabilities. Each operation applies only to certain
      card products — see [Card
      products](/card-issuance/v1.6/guide/card-products).
  - name: Card Arts
    description: >-
      Manage the visual designs (card arts) available to your issuing account.
      Set an account-wide default, or pass `card_art_id` when issuing or
      updating a card to override per card. Available on Personal Visa.
  - name: Cardholders
    description: >-
      You can create cardholders, which are authorized representatives of your
      business that can be issued cards.
  - name: Transactions
    description: >-
      These APIs allow you to retrieve information on transactions that are made
      on your user's cards.
  - name: Products
    description: >-
      With this set of APIs, you will be able to create card orders for your
      customers.
  - name: Balances
    description: >-
      The available and pending amounts for each currency are broken down
      further by payment source types. You can retrieve it to see the balance
      currently on your issuing account.
  - name: Transfers
    description: Transfer funds between issuing accounts.
  - name: Reports
    description: Generate and download issuing reports.
  - name: Simulator
    description: Simulate card transactions on the sandbox environment.
paths:
  /v1/issuing/transactions/unsolicited_refund/release:
    post:
      tags:
        - Transactions
      summary: Claim Unsolicited Refund
      description: >
        <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.
      operationId: claim-unsolicited-refund
      parameters:
        - $ref: '#/components/parameters/XOnBehalfOf'
        - $ref: '#/components/parameters/XIdempotencyKey'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - related_transaction_id
              properties:
                related_transaction_id:
                  type: string
                  description: >-
                    The original authorization's transaction identifier that the
                    unsolicited refund is matched against. Use the
                    authorization's `transaction_id`, not its
                    `short_reference_id`.
                  example: c0cef051-29c5-4796-b86a-cd5b684bfad7
                remark:
                  type: string
                  description: Optional note describing the claim, stored with the request.
                  example: claim unsolicited refund
      responses:
        '200':
          description: OK - The claim was accepted for asynchronous processing.
          headers:
            x-response-id:
              $ref: '#/components/headers/XResponseId'
          content:
            application/json:
              schema:
                title: ClaimUnsolicitedRefundResponse
                properties:
                  request_status:
                    $ref: '#/components/schemas/RequestStatus'
              example:
                request_status: SUCCESS
      security:
        - XAuthToken: []
components:
  parameters:
    XOnBehalfOf:
      in: header
      name: x-on-behalf-of
      schema:
        type: string
      required: false
      description: >
        Specifies the sub-account on whose behalf the request is made. This
        should be set to the `account_id`, which can be retrieved via the [List
        Connected
        Accounts](/account-center/v1.6/api-reference/list-connected-accounts)
        endpoint. If omitted or empty, the request is executed using the master
        account.

        More information at [Connected
        Accounts](/account-center/v1.6/guide/connected-accounts).
      example: 18523f72-f4de-4f9c-bb8e-ec7d1c4f32be
    XIdempotencyKey:
      in: header
      name: x-idempotency-key
      schema:
        type: string
        format: uuid
      required: true
      description: >-
        A unique identifier (UUID) used to maintain operation idempotency,
        ensuring that repeated executions of the same operation do not result in
        unintended effects or duplication. It helps preserve data consistency in
        the face of network errors, retries, or failures.
      example: 18523f72-f4de-4f9c-bb8e-ec7d1c4f32be
  headers:
    XResponseId:
      description: >-
        Universally unique identifier (UUID v4) for the response. Helpful for
        identifying a request when communicating with UQPAY support.
      schema:
        type: string
        format: uuid
        example: 2adba88e-9d63-44bc-b975-9b6ae3440dde
  schemas:
    RequestStatus:
      type: string
      description: |
        Request status.
      enum:
        - SUCCESS
  securitySchemes:
    XAuthToken:
      type: apiKey
      in: header
      name: x-auth-token
      description: The API token for login provided by UQPay.

````