Hey Tzu,
The address for payment shouldn't change unless you open a new order. Does the address on the TXID match the address on transaxe? If you're on PC, Try copy it and see if it switches to another bitcoin address.
If it does change, you most likely have a virus like BitcoinClipper or something along them lines. If the address changes when you copy paste it, run a virus scan and see if it detects anything.
If not, then I recommend contacting transaxe with all relevant information to see if they can rectify the issue.
SOTL
The address for payment shouldn't change unless you open a new order. Does the address on the TXID match the address on transaxe? If you're on PC, Try copy it and see if it switches to another bitcoin address.
If it does change, you most likely have a virus like BitcoinClipper or something along them lines. If the address changes when you copy paste it, run a virus scan and see if it detects anything.
If not, then I recommend contacting transaxe with all relevant information to see if they can rectify the issue.
SOTL