Twitter Complaint - How to Proceed
Do the following, go to the help center on your Twitter homepage, it is on the menu to the left, almost all the way at the bottom:
Click it, and you should arrive at the Twitter Help Centre.
On the bottom right in the help centre window there is a selection called "Suspended Accounts", click it:
After you have clicked Suspended Accounts, you should arrive on a page looking like this:
Click on "about suspended accounts".