iPhone 4 black 16 GB brand new condition,PERFECT WORKING ORDER ?

HERE IS MY IPHONE 4 BALCK 16 GB. THE PHONE LOOKS BRAND NEW AS I USED SCREEN PROTECTOR FROM DAY ONE. IT COMES WITH ORIGINAL BOX AND CHARGER AND US B LEAD. THE PHONE IS ON O2, TESCO AND GIFF GAFF MOBILE NETWORKS.I DO NOT KNOW IF IT’S UNLOCKED OR NOT. CASH ON COLLECTION ONLY OR I CAN DELIVER IF YOU PAYT FOR THE FUEL. THANKS