Fed up customer

Telkom consultant came to my house, sold me a nice deal where; instead of getting 30GB a month for R599, I can have unlimited gigs for the same R599. It was a good deal, I immediately cancelled my old line and upgraded to a new one (This was in October last year.) They kept debiting and I assumed it was for the new line but it was still for the old line . How I found out was when my new line got suspended beginning March and they sent lawyers on me. I resent them the same cancellation form I emailed in October. Up to this date, I’m still waiting and they have not stopped debiting . I have called numerous times, no body is willing to assist me.

Now I want to cancel even the new one. I cant work with Telkom anymore.