Respect the client or say goodbye....

The driver that just delivered my new sim was the most rudest and most unprofessional person I have ever met in my life. for the amount of money I spend a month with afrihost I expect courteous and professional people to assist me. He was back chatting me and giving me, the valuable client, attitude in the most unprofessional way possible. Who does he think I am? a street vendor trying to sell him sun glasses? I receive at least 3 deliveries a week from courier companies, and never, have I been treated like this before. totally disgusted and disappointed.