The address will be on the printed labels - which you can access even if you use the QR codes.
It would be helpful if you posted from the account you currently sell from and if you explained what the issue was: 'neither was correct' is a bit vague.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)
