CARTRACK EXTREMELY POOR CUSTOMER SERVICE

POOR POOR POOR customer service !!!!!!! Stay away from this company. I have been emailing then for months with no response at all. I cancelled my contract with confirmation from cartrack effective end of February. I even paid 1 month extra to cover the 30 day notice period. But still every couple of months I receive an email with a final letter of demand. I have sent numerous emails stating this contract have been cancelled with confirmation from cartrack and requesting confirmation from cartrack that it has been done. I have even sent emails to their CEOescalations email address and nothing from them. DO NOT USE THEM!!!!!!!