Avoid Signing with this Company

Decided to use Cartrack as an alternative to my other Car Tracking Service for a business vehicle in 2018. At the end of 2019 we sold said vehicle but continued to pay the monthly instalments due to a 3 year contract which we signed and was only due to end in February 2021. On February the 6th of his year I was contacted by CarTrack in order to settle an outstanding amount of R660 in order to finalise the three year contract. Said telephonic conversation was, according to the representative recorded for quality and training purposes. After confirming this as being the final instalment a payment was made immediately after the completion of the call. On the 8th of March I received another call enquiring as to why I had not made payment on the 1st. A full explanation was given upon which the said representative confirmed that he would reflect back on the telephonic conversation on the 6th of February to confirm. Subsequently an entry was made that the contract had been cancelled but not for the 6th of February but for the 8th of March. This is where the nightmare started. Every single day, and I mean every single day, including Saturdays, Sundays and Public Holidays until today, now the 16th of September these people call me two or three times a day looking for the outstanding instalment of R315. I have explained myself not once, not twice, a hundred times, to no avail. I have been threatened with legal action, I have been blacklisted and have had my account handed over to lawyers who are now sending me text messages offering 20% discount. The calls have become somewhat abusive, threatening and intimidating. I have never experienced this kind of harassment from any company in comparison to this. Its ridiculous and downright disgusting. Its so bad that the cals which all come from the same number are being made before 8 o'clock in the morning and when you answer they hang the phone up in your ear, either to prove that they have logged a call or just a form of harassment. My advice, I have no complaints with the service but be prepared for an extremely unprofessional response when you try to terminate the service.