Insurance ****/theft

Hi there, My boss has been trying to cancel his insurance on his cellphone contracts since June 2015. He has insured his phone's privately and never asked for MTN to insure his phones. Since then I have not been able to get through to speak to anyone because their phone lines are down. He has been into two branches, filled out documents and emailed constantly but the issues has not been resolved. My boss then contacted a well known newspaper to tell them that this is wrong and others should know about this. We copied the MTN people on the mail who were \dealing\" with us and once they saw we were getting media involved they said they would refund the insurance. I have received my boss's latest invoices and they are still charging him insurance! I mail them constantly asking for an update or feedback and all they can say to me is that they will escalate the matter further. MTN is taking money that is not theirs to take and is probably doing this to many more people who don't look at their billings well enough. "