Ok... I have an Issue! I have an iPhone 2G and it started to play up. So it was time to upgrade to the top of the range 3GS 32GB. So.. I sought to buy one unlocked. I went on ebay and contacted several nearby members that I will buy one for $800 (AUS$) if I could pick it up on that day. I got a message from one of the sellers saying he wants $840. I talked him down to $800. I went about an hour away from home to pick it up at a job site he was working at. We ended up meeting at a hardware store. He shook my hand. Showed me the iphone all wrapped up still in protective plastic and charger and headphones were in there etc. I said.. great. heres the money and gave him the cash. We shook hands again and then we left. I was aching to play with my new iPhone 3GS. I got home 2 hours later and unpackaged it properly, cleaned it and put its new expensive case and screen protector on it. Then I switched it on and had a look at it. I was told it was unlocked. I then saw that it had a sim card already in it. On the 3 Network. This is when I saw a massive amount of stupidity on my part. I realised I did not have his Name, his Address or even Proof of Purchase / A Receipt. I only have his phone number and his ebay ID. I am pretty sure that It is obviously on a contract and I have a feeling he has no intention of paying it! Who knows.. I might be lucky. But maybe he will declare it stolen and therefore it will be bricked. Maybe it was bought with a fake identity and they will find me because of the IMEI / Serial numbers and I will get the blame. What do I do? What can I do? My fellow Apple friends, HELP! EDIT: My sim works, the issue was if the Sim card that was in it was associated with the phone by a contract. This would mean that someone would need to be billed and the phone would not be under my ownership. (especially considering no proof of purchase.) As an Economics and Law University student, I should realise the importance of a receipt...!!!