Bad financial management

Purchased a new vehicle in July 2025, called cartrack to ask if they can put the unit into the new one. Due R9 outstanding they refused to assist me!!! This leading to cancelation via call, whatsapp and email (fyi i was on a month to month contract). After numerous email communication that the unit is canceled they tried to be debit my acc. Which failed. Now they send me letters of blacklist and i must pay r1800 to remove itc from my name and outstanding amounts. I am so fed up with this ppl as this is is ******* and i see that they are already in trouble for similar issues. This muat be rectified as i do have all email and WhatsApp msgs that can confirm this