Hello, quick question. I have a couple of months left on my 02 contract. Can I pay of my refresh tarrif/balance of my phone and upgrade through 3rd party company like carphone warehouse or mobile.co.uk? Or would I have to wait till the end of my 2 year contract to upgrade outside of o2?
I'm staying with o2 and same number, just looking to upgrade to HTC 10 that o2 don't stock.
