Twitter usually sends an email to the email address linked with your account and explains the reason for the suspension. Here are the common reasons for suspending your account:
1. Violating Twitter Rules
2. Impersonation
3. Automated Behavior
4. Abusive Behavior
5. Unauthorized Access
How to get a suspended Twitter account back
1. Log in to the suspended account on the web.
2. Follow the on-screen instructions to start the appeal process.
3. Provide any required information and details to explain your case.