I have been trying to upgrade now since the release of the iPhone 15 using my Switch Up account, every time I go in store I get fobbed off, not in stock etc. today I went in store and they couldn't even find me on the system.... again fobbed off and told to ring O2 from home and they will sort the switch up for me!!!! How are they supposed to switch up over the phone? If I could afford it I would cancel all my contracts and go else where, absolutely useless, paying for a service that I cannot use.
