My internet has been down for the last month and a half

I have been a loyal customer of Telkom. Always pay my bills and never default. Yet, for the last year, I have had the worst possible service with regards to my internet. Currently, my internet is down for the last month and a half. Going on to two months. I am paying full price for something that I am not using, this is day light *******. How do you do this? How can Telkom take money and not provide the service that it promises? I am extremely frustrated and disappointed. I was not offered any compensation or assistance. I always get the story that there's a problem at the exchange??? So do something about it!! I Am Paying for this!!!!!