Telkom not recognising bad service and continues

I have reported my ADSL line being down in Melkbosstrand in March 2015. It was so bad that I was offline for at least 50% of the month without Telkom fixing the problem. This went on through April, May till now. I requested that they cancel the line, but is still receiving statements indicating they are charging me monthly. <br> In my deliberations with Telkom they also indicated they will credit for the downtime periods, but this never materialised.<br> I wish to reiterate that the line I cancelled the line in July 2015. They acknowledeged this in an sms, but still nothing. I have since pulled the plug on the line so as to avoid any misunderstandings on the use on the line. I refuse to pay the account of over R2000 as I had no use on this line.