I can’t access my QNAP account, how can I recover it?
Send a support request to QNAP (via your new account)
May we ask whether you have forgotten your NAS account password or your QID?
If it’s your NAS account password, you can reset it through the reset function. If it’s your QID password, myQNAP Cloud also provides a forgot password feature.
How do I reset the administrator password of my NAS? | QNAP
However, if you have forgotten the email address used to register your QID, please contact our support team for assistance. Thanks!