MTN happy to take your money

hi, i have been trying to sort out MTN billing mess up for over a month now. Sadly we have to contact customer care with very little help apart form an email and useless reference numbers. During the black friday period we upgraded 2 contracts and took out a 3rd data contract. Unfortunately no smooth sailing here... Signed 2 made for me S contracts for R249/36 months and 1 data contract for R299/36 months. Minutes and data were not provisioned correctly. this should be a total of R797 , the amount debited was R1741. Dealing with MTN Gateway and was promised credit but still no luck. to make matters worse, my next unbilled invoice now stands at R1716. Theres a R400 plus vat BF promo service fee that i am being charged per contract that needs to be taken out.

Reference number is *** &***.

How do we get some one to assist with this?