A common reason for 2FA auth failures (wrong codes) is,
because it only generates the correct codes if the DATE, TIMEZONE and TIME on your mobile device is accurate.

Try the following:
Go under the "settings" section of your mobile phone, under DATE/TIME settings.
Then check the checkbox that says "Synchronize date/time from the network provider / telecommunication operator".
After having checked this checkbox, the DATE & TIME of your mobile device should be OK. (as long as you have network signal)

Then it should also generate VALID auth codes, when you try them again, they should work.
If the time on your mobile phone is off only by 1-3 minutes, it can/will generate wrong auth codes, which are invalid.
Let me know if this worked out for you.