Your application was not approved

[Ajax]

I received a letter with the following content.

Your Twitter developer account application has been approved!
Thanks for applying for access. We’ve completed our review of your

application, and are excited to share that your request has been approved. Sign in to your developer account to get started.
Thanks for building on Twitter!

But Sign in to my developer account I receive a message:

Your application was not approved.
Thank you for your interest in developer access. We are unable to serve your use case at this time.

Tell me what happened?

I need an API to log into my site using a tweeter, how do I get this?

[fritjof]

Hi Ajax,

I’m sure we can solve this. This might sound like an obvious solution, but to solve this we first have to check of that one:
If you have a large number of Twitter accounts that you use, are you absolutely sure that you are logged in to Twitter with the email address that was sent the approval email?

Best holiday wishes to you.

[Ajax]

I have only one single twitter account.