Worst service ever, HAVE YOU GOT NO SHAME????

I have now seen the EPITOMY of LAZINESS or INCOMPETENCE, im still trying to figure out which one it is, but ill leave that up to you! without going into too much details, the facts are as follows! i have a R300 unlimited minutes bundle, a data bundle ( which i top-up as needed) and also a R200 self imposed credit limit on my package! Yet despite these very clear guidelines, these bunch of Muppets still managed to ***** my account up, and it seems like even the most BASIC MATHS IS BEYOND THEM! Despite having a 1Gb data packages (which i topped up 3 times, and is charged for SEPARATELY) and a R200 credit limit, they still managed to charge me in excess of R700 extra, over and above this. To add insult to injury, getting hold of them is just as impossible, having left whatsapp messages, tried calling (their OWN PHONE NUMBER DOESN'T EVEN WORK) , contacting via Facebook and sending emails for hours, i only received a call 4-5 hours later, where i was told that someone will look at this and get back to me in 4 hours! ITS NOW BEEN 2 DAYS and counting (BASIC TIME KEEPING seems like A CHALLENGE for them too!)! absolutely useless, DON'T EVEN BOTHER with these guys, they are a JOKE