....my 2 year iPhone 6 contract with O2, naturally comes to its end today. I have been paying £28.68 for the airtime plan + £25 for the phone, over that 2 year period. Now that the phone plan part is paid off, I only have to pay £28.68 for the airtime each month. If I stayed on the same airtime plan and just add the £33.45 for the iPhone 7 (via the upgrade plan), then that would obviously be £63.13 a month, which was more than I was paying a month for my contract.
I think, for me, it will work out cheaper to take out a new contract with the network and pay for the phone through them, than do it via the Upgrade Plan. Add to the fact, that the upgrade plan, is actually, only available in store and not online. If you can't get to a store (like me), then ordering via the network, is the only choice (other than forking out the full whack via Apple website).