Bad Service

I have on numerous occasions have received a call a from ***, advising them that this is not the primary number of their client and requested on numerous occasions for them to remove my number from their system. This has been happening for over 5 months, with no success. It is extremely irritating that they pay no mind to our requests who have no business with them and then the consultants have the audacity to say they will continue calling me and laughs at my requests for the removal of my number. Completely unprofessional.