MTN Decide for the customers

I have/had a cellphone insurance from first day I bought a phone from Mtn. Last month I realised that they didn't debit the premium and I phoned them asking why they didn't debit. Only to find that they are no longer under pinnacle marketing they are under admyntec. I was given their numbers and I contacted them. They did not tell me why they didn't debit they only send me the new debit order form of which I filled with the debit date of the 1st. On the 20th they debit and I had no funds in my account as it was not the date I gave them was the date they decided to run the debit. I phoned them again to rectify it and was told would be rectified and the debit will start from 1st march. I was surprise on Monday the 24th when I received a sms for cancellation of the insurance. Why, I don't know. I phoned them again to find out and the person who assisted me understood my story and said she had sent an email to his supervisor she would call me back but she never did until now. Tired of been sent from pillar to post after paying this insurance for more than two years without claiming. Is that how Mtn milking us? If that's how they operate they are robbing the poor customers. I need my insurance be reinstated and Mtn learn to communicate with me as their customer.