Hi Richard. What a mess.

My job involves calling CXOs and pitching them for business. When this sort of thing happens, I take exactly the same approach. We had trouble with Virgin Media, so we found out the head office number and the name of the boss and called repeatedly. We didn’t happen to get him, but we were taken seriously and an executive was assigned to look into the case. Solved in days.

The CEO of Vodafone UK is jeroen.hoencamp@vodafone.com. The head office number is 01635 33251, dial 2 and ask for him by name. You are most likely to reach him before 9 and after 6.

The UK head of customer service is Stephen Parry. He publishes his personal email address on his LinkedIn profile, but you should also reach him through the switchboard.

Good luck!