Shocking customer service. Told by the First Lady that she believed we were mis-sold a dongle after constantly going over data as my partner was told that he could not increase his tariff. Turns out we could have. 4 long phone calls later, with two different staff who “will call me back, they promise”, still no solution given. Going to call yet again today at my inconvenience. My partner has been with O2 for 10+ years now and once this contract has ended, neither of us will be staying with them.