Unacceptable service delivery

I am frustrated with unacceptable service delivery. I reported more than dozen of times on the issues of line being down, super slow or dead ADSL line. The latest incident once again sorted absolutely nothing after waiting for 4 weeks for a technician. Once they pitched up and spent a few hours here, they mentioned that it is cabling issue. Day later I received sms saying all is sorted which is complete nonsense. It takes upto 10 minutes to send email on 4 MBs line.

I want Telkom to find a solution or cancel our adsl line as we are not getting connection we signed for. This issue with super slow internet speed couldn't be resolved for last 6 months !!!