CARTRACK HARRASSMENT!

CARTRACK IS ONE COMPANY, I HAVE HAD THE WORST EXPERIENCE TO DATE. I HAD BOUGHT MY VEHICLE IN 2023, I WAS INFORMED BY THE CAR DEALER THAT THE TRACKER UNIT WAS PRE-INSTALLED INTO THE VEHICLE, I DECIDED TO TAKE THE CARTRACK SERVICE, I WAS INFORMED BY THE DEALER I COULD CANCEL AT ANY TIME, NO CONTRACT WAS SIGNED. I HAVE CANCELLED THE DEBIT ORDER, NOW I AM BEING HARASSED BY CARTRACK. I AM RECEIVING 7 TO 10 CALLS PER DAY, THEY ARE EVEN GOING AS FAR AS SENDING MESSAGES ON A SUNDAY AT 6AM....