Sluggishly resolved billing query

I was being overcharged for my home internet for over 6 months, I reported the issue to Telkom personally and telephonically more than 5 times. Each time they would tell me that they had logged the complaint and that they would get back to me with feedback and resolve the issue. <br> <br> However I never got feedback on any of the occasions, I had to follow up on the case myself, meanwhile they were still overcharging me. Each time I enquired they would tell me that the case was logged incorrectly by them and that they needed to re-log the case. <br> <br> It took them six months to resolve the issue and that only because I made additional follow up calls. No apology or explanation was given for why the error occurred.<br> <br> In summary I just received poor customer service and communication