I am in dubai and I purchased an AT&T Iphone 4 from EBay six month ago, which is coctract free.after hearing about AT&T unlock i contacted AT&T (+18668013600) and they told me that you fax the EBay OR PayPal receipt so we can try to unlock your Iphone, they created my case and told me that you will receive update till evening 16April.....This is the prosedure for unlocking an Iphone purchased through EBay..but today i saw a new tweet that there is another prosedure of 72 hours through AT&T website chat...which i cannot confirm, if some one have information about so please share...here is the link for detail about that  http://thenextweb.com/mobile/2012/04/08/atts-iphone-unlock-process-detailed-a-quick-online-chat-appl...