Telkom internet line fault logging

I have logged fault after fault to get my internet line fixed. I have been struggling for 3 months to get someone to sort my line out. But every time they say it is fixed, but it is NOT fixed. Internet line keeps dropping and going dead, happens about 5 times a day. I have lost money because of this, for I have a online job. I am fed up with them, they really don't know what they are doing.