INCORRECT BILLING

I am very disappointed and angry with MTN I have been billed incorrectly 3X insurance with different prices in one month and I tried calling customer care to resolve this issue and they have been they told me that insurance is the one that I should call of which I did and insurance is telling me that it’s customer care that’s suppose to assist me with crediting me back the over charged amount I logged this complaint on the 25th and every day I call for an update no one to give me the correct resolution to this problem am tired of calling and having someone saying they will all me back and no body ever does, I regret trusting MTN I left Vodacom after 15 thinking MTN is the best only to be disappointed... I am going to reverse the debit order and pay the correct amount that I am supposed to be billed... even now the billing for March Is way over what I am suppose to be billed... sickening