CARTRACK INCOMPETENCE

CARTRACK send me daily e-mails, but the emails are intended for another client of theirs with the same surname but a different name. This client apparently does not pay his bills, so I get bombarded daily to pay the outstanding amount. Despite sending 10 e-mails asking them to correct the details and not to send me e-mails - it STILL continues - I even called them and asked Customer Service to remove my e-mail from all their systems. I block the e-mails, but then someone else at CARTRACK sends me another e-mail - they are harassing me, and I can not get them to stop!!