Slow Internet For Months

I have been battling with Telkom for probably more than a year to get my slow and unstable internet resolved but no joy. I have logged numerous faults and not once has a technician even bothered to contact me which tells me they are aware of the the cause of the fault but cannot repair it for whatever reason. Instead of informing what the issue is and when it will be resolved or offer me an alternative they will rather make me pay every month for for a service that they cant deliver. I have also recently upgraded my service to a 4Mb account hoping it would improve my service but to no avail...it actually made it worse and have now had it with telkom's poor service delivery! I guess thats the service you get when these no competition :(