Please properly train driver's assistants

On September 17th around 12h10 to 12h15 midday a parcel from Modern Swerve was delivered by The Courier Guy. Because I did not want to make them wait, I came out wearing a towel but it was long so no worries. The guy made a comment that seemed very uncomfortable and very demeaning, he was seated on the passenger seat handing me my parcel. He said "Why are you wearing a towel? Just remove the towel because there's nothing I don't know. I know everything about a woman so remove the towel. " It was very uncomfortable as he wanted to touch me also but I kept on moving away. I was even shaking because I wanted them to leave ASAP