Retrieves a transaction via it's paid merchant order
{- "_id": "tran_Zz5FyPz_YQaAoSHX",
- "merchantId": "mcht_Zz5Fx_z_YQaAoSHU",
- "customerId": "cust_Zz5Fx_z_YQaAoSHV",
- "merchantOrderId": "ordr_Zz5FyPz_YQaAoSHY",
- "transactionPayType": {
- "payCardId": "card_Zz5Fy_z_YQaAoSHw"
}, - "amount": 0,
- "currency": "AUD",
- "surchargeAmount": 0,
- "status": "accepted",
- "statusBeforeDispute": "accepted",
- "lastChargeId": "chrg_Zz5FyPz_YQaAoSHZ",
- "refundedAmount": 0,
- "payoutId": "payout_Zz5FyPz_YQaAoSHh",
- "createdAt": "2019-08-24T14:15:22Z",
- "updatedAt": "2019-08-24T14:15:22Z",
- "fee": 0
}