I've been with O2 for three years now. I received a call from their sales team offering me an iPhone 13pro on a 24-month contract. I was told about my airtime bill and how I use 100+ gigabytes of internet a month, when in reality I just use 15 gigabyte as a maximum, so he kept trying to convince me until I got on 120 gigabytes for 40 pounds, but the explanation wasn't clear, I thought the 40 pounds were for both the phone and the airtime. Long story short, I was convinced, and a week later I was told I was only charged 40 pounds for airtime by O2. They said I couldn't change my airtime until I paid off all my contracts. BASICALLY, THIS MFING SALES GUY was trying to get me on the contract because I couldn't go back once I signed it. They train their staff to scam people nothing more.