MTN SERVICE DISGUSTING! THEY FIX A PROBLEM, AND THEN DO EXACTLY THE SAME THE FOLLOWING MONTH!!

MTN service is less than disgusting. i have tried for 2 hours to get through to speak to someone on the phone. After a whole debacle where i posted on Hellopeter in January becuase MTN billed me incorrectly because they had sent an sms to a modem for me to answer to open a line that was closed, and obviously I could not respond, so they politely just opened the line, and billed me an extra R400. Once I posted a gentleman from MTN phoned me, and apologised for their mistake, and I was duly credited with the R400 on my next account. However, I don't think they ever fixed the problem, becuase this month they have debited me an extra R500 on my account again. On what should be a CLOSED line with a limit on it. It's great MTN that you sorted it out once, BUT SERIOUSLY CAN YOU PLEASE SORT IT OUT PROPERLY SO THAT I DON'T HAVE TO KEEP DOING THIS. I NOW NEED TO BE CREDITED FOR R500, and I CAN SEE THAT THE PROBLEM IS GOING TO BE ONGOING!!!!!!! As I said trying to phone you to resolve anything is impossible, because ypu wait 2 hours and literally then get cut off. I AM BEYOND ANGRY AND FRUSTRATED WITH THIS POOR SERVICE. PLEASE CONTACT ME TO RESOLVE YOUR ERROR AGAIN!!!!!!