My Two-Factor Authentication (2FA) is not working, why not?
If your 2FA code does not work properly, it might be the result of one of the following causes:
You have set up 2FA multiple times on the same device.
Check whether the code you entered on Coinmerce belongs to your account or to a different service.
The time on your device is incorrect.
This might lead to codes that are not in sync. In order to solve this, you will have to ensure that the time on your device is set to automatic (as opposed to manual), and has set to the correct time zone.
If the problem cannot solved by one of solutions mentioned above, you can always reset your 2FA.