What happened to the 30days?

I'm so gatvol for Telkom. Last year it took me 4 months to cancel my wifi contract with them because there are no Telkom coverage where on the farm we live now. Again I am waiting now for the 3rd month, from the 8th of March, for another contract that needs to be canceled. And then they still say to me, 30 days for cancelation. In the mean time, because someone is not doing their job, i still pay something i do noy use for the last how many months. Telkom, your service is really bad.