Reference

1. Payment scenario

Key	Description
000	Success
101	Transaction in progress, please try again later
102	Transaction cancellation
103	Transaction successful
104	Transaction does not exist
105	Transaction refunded
106	Transaction failed
107	Transaction timeout
108	Transaction result unknown
109	Network anomaly
110	Operator cancellation
111	Read card timeout
112	QR Code timeout
113	Duplicate merchant order number
114	Unsupported transaction types
115	Transaction reject
116	Not logged in
117	Unsupported payment scenario
118	Token expired
119	Can not void
120	Amount out of limit
121	Incorrect amount format
201	Failed to close the transaction
202	Transaction parameter error
999	Unknown error