********** Roaming billing

Hi my name is Zakhele Thusi Siwela I have a complaint with MTN South Africa. The issue started with the debit order of end of July, where I was billed R3081 for the month. I phoned call centre to find out, they told me it's for roaming calls. I then requested an itemised bill for the month of June and July which take 72hours it never came 14 days later I reversed the debit. They started sending me requests emails I told them I need my itemised bill, after being threatened with blacklisting, legal actions and termination of the contract. On 30th of October I was sent an itemized bill which looked like a document typed by someone, upon going through the itemized bill I found it to be a bit ********** with a number which is made with part of my cell phone number and being billed more than 5 times. Looking at my ni November itemised bill the same number appears and is billed 6 times for roaming rates the billing looks ********** again. I feel MTN is taking for a fool and want to take money from **********. Hellopeter please help in this matter.