I got denied an upgrade by O2 because Equifax doesn't like the fact that I am not registered to vote and I make a 6 figure salary in the UK. I asked why the hell can't I upgrade after I had no problems getting the phone on contract a year ago, got a stupid reply ordered an iPhone 7 from the Apple store and moved to EE. I called Equifax to complain and they told me to send a letter of correction, I told them Amex gave me a credit limit higher than the average take home salary in the UK and they can sod off, I can't believe I've wasted 15 GBP on that fucking report.