Impossible to cancel unused mobile lines

I was given two 'free' mobile lines (sim cards) with a smart home package that I took out about 3 years ago. I've never used them so thought nothing of it, but got pretty annoyed when I was charged a reconnection fee for these when I failed to pay my normal telkom line. The smart home package has since expired/been upgraded, but these irritating mobile lines remain on my account. I've tried everything as prescribed by telkom to get rid of these lines. Fixed line says its a mobile issue, mobile tells me to come in to the store, I do that they try cancel it ...no luck...no follow up. I've sent the required forms by email on 26 Apr, 23 Jun, 17 Jul, and again today, but I'm so confident that nothing will come of that that I'm trying HelloPeter instead.