Matrix Beamie - Only cares about sales and not the customer

I have been a client for 2 years and I have both my vehicles with Matrix and Beamie. Yesterday I had a call that my units had expired and a technician was sent to install new devices. To my surprise i now have a total of 8 units (2 old and 2 new on both vehicles) which is draining my battery. I then called Matrix and was told that this mean I have taken out 2 plans and that the old debit order and the new debit order will be running at the same time. What nonsense is this? Your sales process is bull**** and you should not be pushing sales and having poor customer service. I will be telling all my referrals to cancel your bull**** because you clearly care about money more than customers