looking at taking out a deal for the htc one. buymobilephones.net are offering it for £24 a month with cashback by redemption. The contract is £32 a month but the cashback brings it down to £24. It seems a ridiculously good offer for 600 mins, unlimited texts and 750mb data. Just worried about the cashback. They say you have 60 days to claim it. Is it worth the risk?