How do I delete my twitter account?
To delete your Twitter account, log in and click the button at the top of the page. Select Settings, scroll down to the bottom of the page and click Deactivate My Account. Go to http://www.ehow.com/how_4557110_delete-twitter-account.html for more information.
Sign onto Twitter and go to your account settings. There is a small red link all the way at the bottom that says "Deactivate My Account". Click on that. I think they hide it so it's not too easy to do! :o) Good luck.
And remember you have to do it on a computer not a mobile