Unlocked Apple iPhone 3GS 8GB

I got this Iphone 3GS last week. It's unlocked but when I enter my sim card, nothing happens. It's jailbroken too. That means it's not new to begin with. On the back of the box, it says: AT&T, and then a sticker pasted on top of the box saying "Iphone unlocked new" which is a complete lie. I hooked it up with itunes, it updated to the latest OS, and it just stopped working, won't activate, due to it being locked only for AT&T. Also, box came in full of scratches and usage marks. On top of that apple websites specifies this comes with DOCUMENTATION. This one didn't even have the clip to enter the SIM card. No documentation whatsoever. Luckily I'm getting the phone returned, to get this rip off over with. DO NOT BUY this if what you need is a FACTORY UNLOCKED Iphone. Sharing is sexy