Yes, iPhone Payments is still available. 20 month interest free loan with a £69 upfront payment and no AppleCare requirements. No upgrade option after 11 payments, though you can pay off the balance at any time to close the account and the phone is 100% yours. Making additional payments will only reduce the term and not the on-going monthly amounts.
The same is largely true for the Upgrade Programme, except you get the upgrade option after 11 payments and you must take out AppleCare (also spread out over the total term). If you cancel AppleCare before upgrading or the total term, you basically get bumped to iPhone Payments and also lose your ability to upgrade early.
Many on here have found you're better off selling the phone and using the funds to pay off the balance to close the account, getting some money back on top rather than simply handing the phone back to Apple at upgrade time. Depends on how much faffing you're happy to put up with.
Thanks for the reply. For the payments plan, do you know how that is set up? I'm probably being stupid but I can see the option online to buy outright or with iUP but not the payments plan. Can I just reserve one to buy in store then mention I want the payments plan when I pick it up?
Personally I'm not convinced apple care is worth it hence the payments plan is of interest to me