Emotionally Violated by Blake Collections and Telkom

I have been going through a total nightmare with Telkom since last year Jan 2020 where I asked in time for an ADSL line (which is no longer available in the area) to be cancelled. I followed all the correct policies and rules to have this cancelled which they never did, they just kept sending me a billing month after month and now that bill that they have been sending me has accumulated interest. Then months later a collection agency called VVM contact me who I sent all the information regarding this matter and they stopped harassing me and then all of a sudden in September Blake Collections stepped into the picture a totally different agency. Once again I sent all my information explaining what happened etc and then today almost 3 months later I receive an email from Blake Collections saying that I need to pay Telkom for the interest that accumulated on the bills that they sent me month after month after I formally requested a cancellation last year Jan 2020. I followed all the rules and policies and now just because Telkom can't follow their own policies I'm being punished and they want me to pay for their incompetence. I feel sad, disappointed, stressed out and emotionally violated by this whole ordeal. I have the proof and I've sent it multiple times to different people, we do not have the money to pay for Telkom's mistake we are supporting my parents since covid 19 started, my dad lost his job. I just can't deal anymore.....need this to be sorted out and Telkom and you guys to leave me alone