Fibre line incorrectly cancelled.

I have been having billing issues from last year November when I moved onto fibre. Since November I was charged for a phone line that I was assured were cancelled and hit with thousands of Rands in bills that I paid upto date as I knew they weren't going to refund me. I requested again to have the line cancelled in April 29th.i received a ref no. ***8.till July I was being charged a 200 fee. When I asked they Informed them to cancel the line. They cancelled my fibre line last week. When I received communication that my line was being canceled. I phoned telkom twice and was assured that my line will not be cut. They cancelled my fibre line a week ago. Everyday I phone and advised it is escalated but no one is contacting me. I feel this is the only platform I will receive some assistance.