Poor services

I was called by an agent to sell me the their tracking device, they told me that they were running a promotion where they selling their mx2 for R139 per month for each vehicle, then I took two of them for my Corsa Bakkie as well as for my polo vivo for R278 a month. Arrangements were made to come and do the fitment, after they fitted I then received the pro-rata billing after that cancelations and new cases were made, I received messages with different case numbers and I didn't entertain it. Then another bill followed with different amount I called Metrix where I was told that someone from their outsourcing company canceled my mx2 and request for Mx3 to be fitted. I asked the agent by the name of Ayanda who is the person that canceled what I agreed on and change my account without my consent, she then said she is also perplexed because alot of cancelations took place on my account however she will send it for investigation and requested the voice recordings then she will me the feedback. Days passed nothing happened, I then called again and spoke to the agent identified herself as Nondu, I explained my story again then she asked her senior then they agreed to downgrade my option to the one that I chose and proof of the cancelation cases and new cases came in, another bill came then few days later a new bill came in with the amount of R1191. 61 for two bills two months pro rata and premiums. I called and requested to speak to Nondu then they put me through to her, but she the other one will be written off but still I had two bills in one account, she said I should pay where I told her I wouldn't pay for something that I did not agree on. Accounts collections sent me sms telling me they received my panic buzz but they won't respond becausemy account is overdue by R1191. 61, after that a call followed asking me when am I going to pay my overdue account. I told that lady that I do not have any problem with paying the amount due but I will only pay what I signed up for. I also explained the story to her and she told me as well that she will send it to customer care for investigation because I should have been billed once not twice. Till today no one has given me feedback and I'm going to the third month and this issue hasn't been resolved since the 15th of July 2022. Only if I knew that they have poor service like this I wouldn't have bought their services. I want this canceled with immediate effect because they I can't trust them anymore.