i am currently using amd iphone 5c but am in desperate need of an
upgrade. o2 tells me that i have £70 to pay then i can upgrade but must
i upgrade directly from o2 or can i upgrade from carphone warehouse as
they have cheaper tarrifs
I do have a standard contract but i would just like to upgrade rather
than cancel so i shouldnt need to pay too much. But if i upgrade would i
be tied down to upgrading directly for o2 or do i have other optiona
