Grindrod logistics doing well but at what cost

I have been doing business with Grindrod logistics for less than 3 months, but I've had enough there's a racist general manager by the name of Muhammad Hassim he's based in Johannesburg in this few months I have to practically beg for payment for services rendered and now it's become worse because I'm black and now I have to prove that I did render the service all because he wants to cut costs so meaning while he's busy investigating I have to continue offering the service for free I guess because money doesn't suit me.