Bad costumer service

Just want to inform Mango that their customer service at George Airport is terrible, the notice sign said luggage check ins are open for my flight , after standing for 10min in front of the guy working at Mango check ins and after greeting him very friendly he just ignored me and kept listening to his very loud music on his cellphone and chatting with a co worker. I stood a while longer when he told me very rudely that check ins isn't open yet and he shut the door in my face! Please guys give attention at your workers and their attitudes towards loyal customers.