Poor Customer Service

After seeing no use of having a Netstar tracking system on my vehicle due it not being accurate. I request Netstar to cancel my month to month contract in Feb 2025. I received confirmation that my contract was canceled and netstar won't be liable for anything that happens after.. since then I've been reversing unauthorised Debit orders and being tossed from customer care to Finance Legal to their retention department to a point where I'm now seeking legal advise. They don't care about the impact of such in one's finances, credit score ,banking statement.