o2 pay as you go

[sophie_1003]

My friend was telling me that if you go into Carphone Warehouse you can get a free upgrade on o2 pay as you go, she says you don't have to pay anything, you don't trade in your old phone and you get to keep your number; has she got something wrong in the details because it sounds too good to be true!

[suzie1]

i think you may have to be with them a year before the upgrade