Poor service

I have 4 contract with MTN and one of the contract that most gave headache is the data line, I took up a data contract with mtn for 2GB normal data and with an additional 2 GB Night Express they told me that the night express is from midnight till 06H00 am daily and when i got my bill i had to pay more double the subscribtion fee and it went on for 3 months and during this whole time i ask them what is going on and they were passing the buck like no bodies business I was so ****ed cause i never enjoyed the night express for 3 month instead i have an account that they refused correct due to their neglegency... I AM GATVOL WITH MTN THEY DONT GIVE A DAMN ABOUT US THEY ARE JUST A LOT OF CROOCKS. <br> <br> now recently i upgraded and my total subscription is about R900 but i have been Billed for 2 Consecutive months amount of about R1660 and R1774 respectively and they still cant ****ing account for that.. I AM GOING TO TERMINATE ALL THESE ****** CONTRACTS I HAVE HAD WITH THEIR POOR SERVICE.