APPLE IPHONE 4S WHITE 3 NETOWRK DOESNT MAKE OR RECEIVE CALLS OR TEXTS .

I HAVE FOR SALE MY IPHONE 4S IN WHITE 16GB IT IS LOCKED TO 3 NETWORK I PURCHASED THE PHONE FROM GUMTREE A FEW WEEKS AGO AND NOW IT DOESNT MAKE OR RECEIVE CALLS OR TEXTS I HAVE BEEN TOLD IT WILL WORK ABROAD 200 NO OFFERS NO PAYPAL NO POSTING CASH ON COLLECTION