For those of you interested in deleting all of your tweets from your Twitter page, do not bother making a request to twitter or support.
Twitter folks have previously stated that they do not delete tweets, for users and it's up to the individual to do so, if they please. To be honest, I couldn't agree more.
However, I have the answer you've been looking for. Delete All My Tweets allows you to delete a number of tweets at a time and can be a long process (depending on your tweet count) but this tool actually works.... and my friend, I have tried many!!
For iOS users, try....
DELETE TWEETS: DLTTR, removes ALL available tweets, but Twitter has some limits, and the counter can be not zero. Check the FAQ in the application!
★ World best tweet deleter
★ Can delete the latest tweets by an hour, day, week, month, year or all of them once
★ Can help you if you wrote anything you regret about and seconds matter, or drunk tweets you cannot remember at all
★ Specially designed interface with a magic big red button and authentic sound
★ First time in Applifto apps – Help mode!