Rude courier guy

Today at about 13:09 -13:23 the RAM courier guy insulted my brother as he approached to collect my parcel and accused him of wanting to hijack him. I was at work when i received a call from my brother and he sounded very upset. This ram courier guy repeatedly said voetsek to him unprovoked. The courier guy phoned me to come outside I told him I will send out my brother because I'm at work and I even gave him my brother's name. I am angry because my brother says this RAM courier guy made a spectacle of him. Its alsilo reported that the neighbours had to ontervene to diffuse the situation.My brother is epileptic and we avoid to upset him cos we don't want to trigger seizures. How do you treat customers like that. I am so angry I was even shaking when my brother called me to report the incident. I was even puzzled when this courier guy foned and apologized repeatedly and that he didn't know that guy was my brother ,I kept on asking what he was on about but when my mother foned me it all made sense. Now I am thinking to myself wat if my brother had retaliated and beat him up? He would have been in jail by now. Why take a job when you do not know the courtesy of speaking to people? This was uncalled for. His behavior is disgusting. I want an apology for my brother from this courier guy.