To check if your application has been suspended:
Log into the account that you used to register the application
Attempts to access the Twitter API through a suspended API key will result in our API returning an HTTP 401 response error: “invalid/suspended application.”
We often send a suspension notification email directly to the email address associated with the account that registered the application.
Please review these terms to find out more about specific violations.
Please file a ticket by visiting our support forms at https://support.twitter.com/forms/platform. Please ensure you are logged in to the account which has registered this application, as we cannot provide any information regarding an application to anyone other than the registrant of the application.
Include the following information as text in the body of your email (our ticketing system automatically discards attachments):
While the previous suspension is still in place, please do not attempt to register a new API key for your application without authorization from Twitter. Such an action is a violation of our API Terms of Service and may result in the permanent suspension of your application (as well as any associated developer accounts).