VERY ****ED OFF NOW!

I have logged a call on the 2nd of August already regarding my problem... I normally pay R807,99 per month on my contracts. this month they charged me R1227,99. I called them and they told me they will credit the money back to me and gave me a ref nr. I waited my 72 hours and never heard back from them, called them back and they could not find my ref nr. this went back and fourth a few times. I was then told that they need to go do a back check on me and check that it is a prof from them etc etc. I called them back within the 72 hours again as they said and they had told me it was clear and they will credit me the money and i can call them back within 2 working day to find out. (this was on Thursday the 17th) Today (the 22nd) I call them again and now they spin me another story of o no it was something in my contract and its a 12 month promotion bla bla bla. I did a upgrade online an no one ever told me ANYTHING of this... All i did was a upgrade... plain strait forward... This is really un freken believable that they can just take my money without letting me know anything... and the fact that I logged the call on the 2nd of August already and it STILL have not been fixed is SHOKING!!! So once again i got given a ref nr for the one millionth time and have to wait another 2 days... This is really crazy...