Retrieves a transaction via it's paid merchant order
{- "_id": "tran_aB12_-AV4gGw0xwd",
- "merchantId": "mcht_aB12_uAV4gGw0xwa",
- "customerId": "cust_aB12_uAV4gGw0xwb",
- "merchantOrderId": "ordr_aB12_-AV4gGw0xwe",
- "transactionPayType": {
- "payCardId": "card_aB13AuAV4gGw0xw2"
}, - "amount": 0,
- "currency": "AUD",
- "surchargeAmount": 0,
- "status": "accepted",
- "statusBeforeDispute": "accepted",
- "lastChargeId": "chrg_aB12_-AV4gGw0xwf",
- "refundedAmount": 0,
- "payoutId": "payout_aB12_-AV4gGw0xwm",
- "createdAt": "2019-08-24T14:15:22Z",
- "updatedAt": "2019-08-24T14:15:22Z",
- "fee": 0
}