We ordered a phone with a one-month rolling contract and it has been a complete nightmare. First our bank told us the transaction had been stopped, Carphone Warehouse confirmed the transaction had not gone through, placed a new order and we ended up with two phones and two contracts. We returned one and did not get the refund processed automatically, we had to phone them again and give them a card to refund against. If this wasn't bad enough the one-month rolling contract is a con, you have to pay MORE THAN ONE MONTH. Vodaphone wanted 30 days notice and payment in advance, so you can't just phone up and cancel, even within 14 days and even if have not used the sim card! The whole experience was a disaster and I will never be using Carphone Warehouse again.