Tracker debits which are false

I used to have a Nissan bakkie with a tracker and I sold it in 2018 and stop subscription of the tracker. In 2019 I bought a kwid and the deal came with a tracker . In 2020 the tracker deal from car dealership fell off but I continued subscription until 2022 when the car was in an accident and was written off . I communicated with tracker about stopping subscription and it was inactivated. Now this year march i recieved a message from tracker wanting to activate a subscription fee and in May a debit of R157.00 was made of which I reversed.now they threaten to take me to court for something I don't have they phone me every day