Never ending fault, truly disappointing

I've had Telkom ADSL for a little under a year, and in that period I must have called in to report a fault at least 10 times for the exact same thing - intermittent speed. Each time I called in, I had to wait at least 15 minutes each time to speak to a consultant who would reset my port and eventually escalate a fault. The most recent fault began around 2 weeks ago, just that this time I got an sms saying that there's an outage in my area and another sms a few days later saying that the fault has been fixed. Just like every other time I got an sms reporting the fault has been fixed, it actually wasn't. I doubt a technician ever attended the issue and if he/she did they clearly did not do a proper job on every single occasion. I have canceled my ADSL line and data as we are moving and will no longer be able to afford it nor am I willing to deal with this poor level of service and quality while paying a ridiculous amount for something that hardly ever works properly. I feel like Telkom should waiver my notice as I doubt my line will even be working properly by the time my services are terminated. Telkom honestly failed to impress me and I am truly disappointed in the service we get