The worse telephone mobile company and the worse process to get through customer service as you will need to call them nearly every day to complaint that you are paying for Data service but no reception at all. I wished to have checked these reviews back in October 2018 before passing to the worse company available 07/05/19 Just on the phone with them to complaint that since last week I have got NO data at all. The O2 staff confirmed that I haven't got internet since the 29th April but the 'great news' was that I'll have internet back from the 9th May 2019. Basically 10 days with no internet UNACCEPTABLE what kind of company has never left the customer with no internet for 10 days?!