_k, did you try to raise an issue? Did you ask Twitter what happened?
Also, this is why Telegram's policy towards "desired username"[1] worries me:
If your desired username is already taken, we will be happy to help you acquire it, provided that you have that same username on at least two of these services: Facebook, Twitter, Instagram.
No, you don't do that! If someone has taken "tom" and that also happens to be the ID of Tom Hanks or Tom Cruise - everywhere else, they should have come first, or you should have reserved all those famous uesernames hoping these celebrities will come to your service.
Also, this is why Telegram's policy towards "desired username"[1] worries me:
No, you don't do that! If someone has taken "tom" and that also happens to be the ID of Tom Hanks or Tom Cruise - everywhere else, they should have come first, or you should have reserved all those famous uesernames hoping these celebrities will come to your service.[1] https://telegram.org/faq#q-what-do-i-do-if-my-username-is-ta...