Answered question
Cant get twitter notifications by TEXT
If it's about 2 step verification, it's an issue. They fixed it for most of providers and they are working to fix it asap for other companies
https://community.fizz.ca/questions/1808946-sms-2-factor-authentication-issues
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Other answers
Never knew you can get twitter notifications through text :O and regarding the question No answer to that sorry
Do tou mean 2 step verification?