Worst service I have ever experienced.

I purchased cellphones with your company and had the cellphones insured. My insurance was not deducted for October and I was advised to make a payment which I did for my November installment. With November's installment, my premiums were deducted twice for the arrears. I paid my account again on November 29th, but soon after received an sms stating that my insurance has been canceled for one of the devices. I have spoken to numerous consultants, called over 23 times, spoke to accounts department, customer service, IUA. I have been sent from one department to the next without any resolution. The service I have received is pathetic and and all the inconvenience caused and unnecessary expenses on airtime as Noone could assist me. There are additional charges for R40,26 which Noone can't explain what the charges are for. I have been a customer for a few years and have always paid on time and or extra. I am so fed up with the service I have received and I need someone to contact me URGENTLY as this is not the service your customers deserve.