Complaint

I'm very Frustrated with Vertex Solutions, I get calls everyday from them looking for someone which i tell them everyday to remove my number from their system coz I'm not the person they looking for with no luck, today I received yet another call n spoke to a guy called Leshoko Khoele asked nicely to let me speak to his supervisor who refused to talk to me n hear me out. I am sick n tired of their calls n the manner of communication coz some of their consultants are very rude as well. I don't know what system are they using that doesn't remove wrong numbers from their system.