Ring Orange customer service and ask them for a PAC code. Tell them you are transfering to GiffGaff as you are no longer happy with the deal you have. As you have been with them for a while, they WILL offer you a better deal. Cost nothing to try! PAC code lasts for 30 days, does not have to be used. If you don't use it, just ask for a new one after the 30 days if needed.