Hello @Peter-Zoltan-Keresztes, I apologize that your post may have been overlooked.
If you cannot access your phone or your 2fa backup codes, you should still be able to disassociate your account by writing directly to the database, as the plugin does here, by deleting the keys and backup codes for your uid.
The Mongo commands should be:
db.objects.update({_key: "2factor:uid:key"},{$unset: {"youruidhere": 1}}
db.objects.remove({_key: "2factor:uid:youruidhere:backupCodes"}}
replacing youruidhere with your uid