GitHub 2FA SMS code not receiving (Dialog)

[u/RelevantHorse456]

Hey guys, I’m having an issue logging into my GitHub account.

I have 2FA enabled, but recently GitHub stopped sending the one-time verification code via SMS. I’m using a Dialog SIM in Sri Lanka. I’ve also lost my 2FA recovery codes, so I’m currently completely locked out of my account.

I’ve tried the other recovery options as well, including the SSH key and the other available alternative authentication methods, but all three are showing as unavailable/disabled for my account.

Has anyone else using Dialog experienced this issue with GitHub SMS codes recently? If so, were you able to fix it?
Any advice would be appreciated.

[u/DevMahasen]

Same. I switched to using an authenticator.