A good deal spoilt by some bad advice, I was out of contract with Vodafone and was told by the advisor from Mobiles.co.uk that I could take on a new contract with them and take my existing number to the new phone / sim deal which was much cheaper than upgrading with Vodafone on my existing contract. Wrong! you can't, you have to convert the existing contract to pay as you go and then cancel it and port the number over using an online form from Vodafone, the problem being Vodafone require a months notice to change you from monthly to PAYG meaning you're paying for 2 contracts for a month before you can port the number over and start using your new phone properly with your old number! And to rub salt into the wound Vodafone are charging me an additional £23.50 of extra charges on the new phone that I haven't even used yet, they assure me it will be sorted out on the billing run but given that their advisors can't even tell me what the charges are for I'm not confident. If Mobiles.co.uk had given me the correct advice at time of purchase I wouldn't be in this situation as I wouldn't have taken on the new contract, but then they would have lost a sale.....!