Upgrading your phone is the easiest way to continue your contract. By choosing an upgrade deal you don’t have to worry about transferring your mobile number to a new agreement, and there will be no overlap on your bills, as the old agreement ends and the new one starts.
When you upgrade you’ll receive a new SIM to activate. It will activate with your existing number, so all your friends and family can continue to contact you as normal. You also have the option of receiving a new handset to enjoy with your new contract.