IPHONE 3G 8GB BLACK MOBILE PHONE FAULTY, GILLINGHAM ?

HI. YOU ARE BUYING A FAULTY IPHONE 3G 8GB MOBILE PHONE. ITS IN BLACK COLOUR. ITS COSMETIC CONDITION IS EXCELLENT. NO SCREATCHES ON THE SCREEN. COMES COMPLETE WITH USB CHARGER/CABLE AND ORIGINAL BOX. THE ONLY FAULT IS WIFI NOT WORKING AND WHEN YOU PUT THE SIM IN ,IT SAYS NO SERVICE. IT LOOKS LIKE NEVER BEEN OPEN. NO SCREW MISSING OR ANY OTHER ISSUE. NO CRACK ON THE BACK AS USUAL IPHONES HAVE. I AM SELLING THIS PHONE AS SPARE AND REPAIRS.DO NOT BUY IF YOU THINK THAT THIS PHONE IS IN FULL WORKING ODER. YOU MIGHT GET IT FIXED BUT I AM NOT SURE. I TRIED MY BEST TO DESCRIBE EVERY THING ABOUT THIS PHONE,HOWEVER IF YOU NEED TO ASK FURTHER INFORMATION,FEEL FREE TO ASK ME PLEASE. CONTACT ME ON 07985552862. MANY THANKS