iphone 4s 16gb black *

hi i have iphone 4s black 16gb for sale i bought it from ebay for 375 2week ago but the seller claim and the mobile giving me the network name not the servise signal o2 said it is imei number barred so selling it now nice clean condetion nearly new seller told me it was 1 month old mobile just the handset could not find the charger please text me if i couldent attend the call i am in longsight manchester area just pick up and pay the cash thanks 07933995741