I think this page http://help.twitter.com/forums/10713/entries/31796 should help you.
On May 4, 5:29 am, arfin_ardelius <fin...@gmail.com> wrote: > dear, Twitter Development Talk.. i want to stop my API use.. but how > can i do? that is very annoy me.. it tweets automaticly and sending > direct message automatically, without my permission, it was bothering > me.. or would you please turn off the use of the API automatically .. > I really hope you can disable the use of my API automatically because > it was bothering me.. before I say many thanks..
