Unable to enter my phone number on Twitter

Hello,

When I try to enter my phone number on Twitter it tells me "We don’t support this carrier for the following number:" even though it’s the same one I had before.

I had tried to remove it because for a few days I can’t log in at all, I had logged out on my phone and every time I tried, it asked for my phone number, I received the message "you cannot log in at the moment". It still does this even after I removed my phone number.

The result is that I can’t create a new login and I can’t enter my number in the app. (I know you shouldn’t put 0 in front and Twitter help isn’t helpful because their site has no answer to my problem).