Loyal and long term customer of 02. Over the past 12 months I’ve needed to contact them over 50 times regarding the same issue, took 10 months to finally resolve the issue. Numerous failed promises to call back. 4 complaints closed with no outcome. Passed from one department to another. No clear processes between departments. Called Friday again. Over 1 hour and 7 minutes on the telephone to be cut off when finally transferred to a manager. I was still on the call when a manager tried to call me. I obviously missed this call as was still on the phone to 02 customers service advisor. Tried to call the number back to find out it was virgin/02 number and no one could help and sent me back to 02 customer service. Another 35 minutes on the phone to be told they would call again. Surprisingly no call back again. Worst customer service ever and complaints are simply not actioned and closed without a response. I will be leaving 02 at the end of my contract after 25 years of being a customer :-(