POST api/Transaction/RefundTransaction

{
  "TransactionKey": "sample string 1",
  "PaymentMethodKey": "sample string 2",
  "RawData": "sample string 3",
  "StatusKey": "sample string 4",
  "PaymentStatusKey": "sample string 5",
  "IsActive": true,
  "FortId": 7,
  "MerchantReference": "sample string 8",
  "OperationKey": "sample string 9",
  "DataSource": 1,
  "AmountDue": 11.0,
  "AmountPaid": 12.0,
  "ModifiedOn": "2025-12-07T07:25:52.3341784+02:00",
  "CurrencyId": 1,
  "CheckOldTransaction": true
}

<PayTransactionModel xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Vezeeta.Payment.Models">
  <AmountDue>11</AmountDue>
  <AmountPaid>12</AmountPaid>
  <CheckOldTransaction>true</CheckOldTransaction>
  <CurrencyId>1</CurrencyId>
  <DataSource>Database</DataSource>
  <FortId>7</FortId>
  <IsActive>true</IsActive>
  <MerchantReference>sample string 8</MerchantReference>
  <ModifiedOn>2025-12-07T07:25:52.3341784+02:00</ModifiedOn>
  <OldTransaction>
    <AccountKey>sample string 10</AccountKey>
    <AmountDue>7</AmountDue>
    <AmountPaid>8</AmountPaid>
    <ComponentKey>sample string 4</ComponentKey>
    <CountryId>13</CountryId>
    <CreatedOn>2025-12-07T07:25:52.3341784+02:00</CreatedOn>
    <Currency>
      <DecimalPoint>1</DecimalPoint>
      <Name>sample string 1</Name>
    </Currency>
    <CurrencyId>9</CurrencyId>
    <ExpirationDate>2025-12-07T07:25:52.3341784+02:00</ExpirationDate>
    <ModifiedOn>2025-12-07T07:25:52.3341784+02:00</ModifiedOn>
    <OperationKey>sample string 2</OperationKey>
    <PayeeKey>sample string 12</PayeeKey>
    <PayerKey>sample string 11</PayerKey>
    <ReferenceKey>sample string 3</ReferenceKey>
    <Status>sample string 6</Status>
    <StatusId>1</StatusId>
    <StatusKey>sample string 5</StatusKey>
    <TransactionAttributes>
      <TransactionAttributeDataItemModel>
        <AttributeKey>sample string 1</AttributeKey>
        <AttributeValue>sample string 2</AttributeValue>
        <IsActive>true</IsActive>
      </TransactionAttributeDataItemModel>
      <TransactionAttributeDataItemModel>
        <AttributeKey>sample string 1</AttributeKey>
        <AttributeValue>sample string 2</AttributeValue>
        <IsActive>true</IsActive>
      </TransactionAttributeDataItemModel>
    </TransactionAttributes>
    <TransactionKey>sample string 1</TransactionKey>
    <TransactionPurpose>sample string 16</TransactionPurpose>
  </OldTransaction>
  <OperationKey>sample string 9</OperationKey>
  <PaymentKey>sample string 10</PaymentKey>
  <PaymentMethodKey>sample string 2</PaymentMethodKey>
  <PaymentStatusKey>sample string 5</PaymentStatusKey>
  <RawData>sample string 3</RawData>
  <StatusKey>sample string 4</StatusKey>
  <TransactionKey>sample string 1</TransactionKey>
</PayTransactionModel>

Sample not available.