I am on a 24 month contract which included Iphone- and this is now up for renewal. I want to switch from current tariff, to SIM only 12 month tariff. I cannot find options to do this on the app or website, only options to upgrade with a new phone. I’ve searched help topics, which take me back to upgrade with new phone tariffs. I just want to switch to sim only, and keep number. TIA 🙂