I have wasted hours and hours of my time

Absolutely shocking experience trying to cancel the service. I was on a month to month contract after years of their service but cannot get them to cancel the debit order. The Call Centre agents promise to resolve but never do and the Accounts department doesn't take calls. It does seem like a ****. I have spoken to and emailed 7 agents sent all 20 copies of correspondence that have been submitted to Powerfleet, *** and NOTHING - they continue to debit me.