Hi! I've come across one ad in Gumtree Melbourne. I've emailed them asking for details etc. Someone named Heidi Thornton with email add firstname.lastname@example.org replied with all the necessary information (payment method + invoice). The thing that bother me is can this seller be trusted? What are the necessary precaution I need to take? Any signs I need to be aware of? Is this claim valid, "brand new Apple iphone 16GB 3GB White officially unlocked with warranty and reciepts and tax invoice"? Can I trust iPhone ad on Gumtree? BTW, the price is AUD$650. Please someone (preferably in Melbourne or Australia) shed some light into this. I do really want an unlocked iPhone. Thanks guys!