faulty alarm then charging me for it

Our beams have been faulty since at least September last year. My partner has called ADT & asked for a technician to which they respond that the technician will call him back and no one does.On 1st Feb my invoice included R57 that i called and enquired about and they said was for excessive callouts. At this time i told them that thats not fair because we've asked for a technician and no one called me back. I accepted this though. In February we realised we get no help from ADT and we started bypassing the problem zones which worked much better.Our house was less secure, but at least no unnecessary calls. Even after all this i get charged R200 extra this month???!!!! I called the call centre now. The lady tells me we had 17 call outs in Jan (that i was already charged for) and she says we had 3 in Feb. At this point lets do the maths according to ADT... 17 caalouts= R57 but a whole 3 callouts = R200. I want a callout invoice. You cant just charge my acoount willy nilly. I also object because we have called for someone to come check. They say we must say when calls were. The one we know for sure was on 28 Sep. feel free to pull all calls from us. My partner called from his landline