Dealing with this company is giving me migraines

How I wish Zero star was possible. I do not recommend this company shame. I’ve had their tracking unit from 2021 when I got my first car, in May of this year I received a call from them saying they received communication from their head office informing them that tracking units that are over 3 years old were due for an upgrade, when this was pitched to me, I wasn’t informed that it was a new contract, same as when I reached 3 years on my old tracking unit, no one called me to retain me as a customer or inform me my subscription has changed to a month to month. When I was informed about this “upgraded” unit, I was told that my monthly premium will reduce but it never did in fact it went higher, I tried to call to query this but then again this company is allergic to answering phones. I then sent an email and called requesting to cancel my subscription even to this day I have not received any communication. Please cancel my subscription I don’t have the airtime to call every day, be on hold for hours then be informed I will receive any communication email which I never do.