Useless accounts and call center

After receiving another incorrect bill which im expected to pay... WOW this service just gets better all the time... You guys needs to skill up your agents correctly no body can even make any sense of what is going on here. Its quite simple u billing me for stuff I do not have. Please solve it in your system then your people. I cannot pay for your mistakes. Spent over 30min on a call to your call center not knowing why they need to bill me a an amount over R150.00... Surely you need to know why you have to bill someone???? The have corrected my bill incorrectly.. and to top it off forgot to send me the so called corrected invoice this month to find out on the last day of the month I need to do your job for you to send it to me so I can again re iterate the same issues!!!!