MDB Harrassment - Wrong Email Address - Not my Account

I am receiving collection emails for someone other than myself constantly. I have called MBD and they deny sending the email to me despite the fact that it comes from ( *** ) . The worst part is that its being sent to my work email. When I call MBD the consultants are rude to the point that they even shout at me . I am terribly frustrated that they wont remove my work email address from their system and claim there is nothing they can do about it. I have been called into HR due to receiving collection email for someone else to my work email and have been given 30 days to resolve this matter. If MBD does not remove my information from their records as per POPIA I will be lodging a complaint against them with the Credit Ombudsman for harassment