Solved

[bellayuu]

My sim card stopped working. When I insert it into my phone, it says that the card cannot be used. I cannot login to the app cause I can’t receive the verification code.

[Meow]

So what is 'solved' then????

If SIM cannot be used then maybe your account is closed due to no-pay?

Try your SIM in another phone for starters..

[slusagm]

Try the sim card on another phone 

And if the phone is new or you just bought, check if it is clean 

https://www.devicecheck.ca/check-status-device-canada/

For 2FA Problem, click Didn't Receive code or Resend code and select email or voicemail option to get the code there instead and you should be able to login or submit ticket