I'm currently an Orange pay-as-you-go customer, and want to get a new phone, but keep my account and phone number. Although the phone companies and shops say that you can't, is there anything to stop you buying a phone for another network and simply putting your own sim card in? I've seen a 3310 for the Fresh network for £69.99, which is MUCH cheaper buying a new phone the way they would like you to buy them!