I haven't violated any terms and my account has not been in twitter search for 3 months!

I haven't violated any terms and my account has not been in twitter search for 3 months! The communities/web sites I belong to that index search via a specific hashtag (i.e. inside the tents) or contests/chats have not found me. Why has my account been removed from search for 3 months? I have not violated any terms? This is not helping me run twitter contests and is detrimental to online marketing for my business!! Please help!!!