ANGRY IS A UNDERSTATEMENT!!!

I would like to know how a how a company operates without a customer service/quality control department. I am at my wits end with this people,after countless calls over R500 airtime being waisted by being placed on hold only to explain the whole complaint over 50 time ,I mean don't you people make notes when attending to a complaint?? I am beyond angry and frustrated at this time, These people installed a faulty dash camera into my vehicle which cause damage to my property (car battery) which complete drained my car battery to a point where my car is standing dead still ,I have to Uber where I want to be ,after countless calls, absolutely No1 count transfer me to ANY superior ,they can never get hold of superior ,promises of call backs from superior but never received ook them 2 weeks to send a technician after countless calls ,when technician finally comes ,his finding are indeed that the product drained my car battery and that he would submit his findings and they will get back to me this was 3 weeks ago ,untill today no payment ,how ironic that after I reverse their debt order the are so quick to call me back ,and again I'm back to square 1 ,where Im struggling to get to the relevant people to sort out my issue,the people calling me are from account and can't sort out queries they only want to hear that I'm making payment, that's it. And to top it off I am not allowed to cancel this contract without paying the cancellation fees ,bear in mind that they are the ones that installed faulty product which caused damage to my property,as far as I am concerned Cartrack is owing me and I will not rest untill your people sort out your mess