I can't receive 6-digit code for authentication

I can’t log in to my Auth0 dashboard.

Previously, I logged in via my Google Account using a 6-digit SMS code.

Yesterday it stopped working, and I never received the code. I don’t remember my recovery code.

I wrote a direct letter to Okta, but there is no answer yet.

Today I tried to log in via email to reset my password, but I did not receive a 6-digit code via email either.

Now I managed to log in via GitHub, but it seems like I created a different account.

As far as I know, I need to reset my two-factor authentication.

How can I resolve this issue and then link my GitHub account to an existing one?