I always get the same error mesage when trying to create an app on this twitter account:
You must add your mobile phone to your Twitter profile before creating an application. Please read https://support.twitter.com/articles/110250-adding-your-mobile-number-to-your-account-via-web for more information.
As you can see I added a phone number and verified it, so there is a phone number and it’s also valid.
I thought it might take some minutes to work, but after many hours it’s still not working.
Earlier on today I did the same process for another account and another phone number and had no problem creating an app. It’s worked instantly and with no issues.
Why is it not working on this account?