--------------------------------------------------
1000 - PENDING
"status_code": "1000",
"status_reason": "PENDING",
--------------------------------------------------
2000 - SUCCESS
"status_code": "2000",
"status_reason": "SUCCESS",
--------------------------------------------------
3000 - MERCHANT_ERROR
"status_code": "3000",
"status_reason": "MERCHANT_ERROR",
--------------------------------------------------
4000 - INVALID_TRANSACTION_ERROR
"status_code": "4000",
"status_reason": "INVALID_TRANSACTION_ERROR",
--------------------------------------------------
4010 - INVALID_UNAUTHORISED_TRANSACTION_ERROR
"status_code": "4010",
"status_reason": "INVALID_UNAUTHORISED_TRANSACTION_ERROR",
--------------------------------------------------
4020 - INVALID_TRANSACTION_EXPIRY_ERROR
"status_code": "4020",
"status_reason": "INVALID_TRANSACTION_EXPIRY_ERROR",
--------------------------------------------------
4030 - INVALID_TRANSACTION_ORDER_CANCELLED_ERROR
"status_code": "4030",
"status_reason": "INVALID_TRANSACTION_ORDER_CANCELLED_ERROR",
--------------------------------------------------
4040 - DUPLICATE_TRANSACTION_ERROR
"status_code": "4040",
"status_reason": "DUPLICATE_TRANSACTION_ERROR",
--------------------------------------------------
4050 - INVALID_PAYMENT_REQUEST_SIGNATURE_CHECKSUM
"status_code": "4050",
"status_reason": "INVALID_PAYMENT_REQUEST_SIGNATURE_CHECKSUM",
--------------------------------------------------
4051 - INVALID_PROVIDER_REDIRECT_SIGNATURE_CHECKSUM
"status_code": "4051",
"status_reason": "INVALID_PROVIDER_REDIRECT_SIGNATURE_CHECKSUM",
--------------------------------------------------
4060 - INVALID_PAYMENT_REQUEST_REFUND_NOT_ALLOWED
"status_code": "4060",
"status_reason": "INVALID_PAYMENT_REQUEST_REFUND_NOT_ALLOWED",
--------------------------------------------------
4100 - SUSPECTED_FRAUDULENT_TRANSACTION_ERROR
"status_code": "4100",
"status_reason": "SUSPECTED_FRAUDULENT_TRANSACTION_ERROR",
--------------------------------------------------
5000 - PAYMENT_CHANNEL_SYSTEM_ERROR
"status_code": "5000",
"status_reason": "PAYMENT_CHANNEL_SYSTEM_ERROR",
--------------------------------------------------
6000 - BANK_ERROR
"status_code": "6000",
"status_reason": "BANK_ERROR",
--------------------------------------------------
7000 - UNKNOWN_ERROR
"status_code": "7000",
"status_reason": "UNKNOWN_ERROR",
--------------------------------------------------