I want a pay as you go iphone 3G (8/16 GB) as I am already tied up with o2 carphoneware house for an year and half on a sim only deal. I wonder if it would be ok to buy one from ebay (price ranges from £250-£300), I am not sure though if apple warranty becomes void with ebay phones. O2 sells it for £342 on their website.
Can somebody please advise about any good options,
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