Pathetic Poor Customer Service

On the 25th of August, at 17:50 I was shopping at the Jet store at Kempton park West Street. While I was paying the store was closing. The store has two doors, one is the main entrance/exit door which majority of customers use and the other is through the CBD. I was done paying at 18:05 and waiting by the main entrance for my colleague to pay for her items and to my surprise when I turned my back a security guard by the name of Louis Nkadimeng who works for the Securex Security Services Company was locking the door from outside and with a confused faced I knocked on the window asking why is he locking and he just starred at me togrther with other custimers as if we are statues and he proceeded to lock the door. I requested the manager who was on duty and told her what happened, she was surprised too walking towards the main entrance to ask Louis to open the door, unfortunately he had already completely locked the door. He came through into the CBD entrance few minutes later and when asked by the manager why he locked the door, with his Pathetic bad attitude he had the audacity to lie in my face that he told me that he's locking the door. I asked him what did I say when he told me and when did he tell me since I was standing right next to the door and he walked away. What kind of attitude and professionalism is he portraying about the company itself? The managers reason was that "he's the only male guard who's capable of locking the doors since its late", It frustrates me that the only thing that matters to them is their safety, what about the safety of the customers who they expect to go out through the CBD entrance when there's the main entrance/exit to the rank closer to the store at about 18:15? It's sad that the company's core values contradicts itself with such poor customer service and unprofessionalism. Louis is a disgrace and shame as he's the company's image at the door, he has a stinking attitude and totally doesn't match the company's values. I'd rather shop elsewhere than the Pathetic Jet store in Kempton Park West Street and will never refer anyone there.