Restore two-factor sign-in
You can’t access your second factor. In almost every case this is solved in a minute — look at the first two points before ordering a letter.
The app shows codes, but Fundort rejects them
Then your phone’s clock is usually wrong. Codes are calculated from the device time; if it is more than a minute off, every code is wrong. Set date and time to automatic in your phone settings (in Google Authenticator also: Settings > Time correction for codes) and sign in again.
You still have a backup code
The eight codes you received during setup work instead of the app. Enter one of them in the normal code field when signing in — each works exactly once. That is the fastest route and needs nothing else.
Go to sign-inNone of that applies
Then we send you a letter with a one-time code to the address stored in your account. It takes a few days — in return it is the only route where nobody can be talked into anything. The address cannot be changed here; it had to be correct beforehand.
This route costs money: printing and postage are not paid by everyone else, but by whoever triggers the letter. You see the exact amount before you order.