bad customer service

I was at Identity at Promenade Mall in Mitchell's Plain on the 03/11/2021 to inquire about size 5 pink sneaker for my daughter. The sales person informed me that they were out of stock and I asked him to please check for me on the system if any other stores have stock, but informed me that all stores in the Cape Metropole are out of stock. He asked me if I have an account with Identity after which I informed him that I have an account and gave him my driver’s license as I did not have my card with me. He entered my I.D number into the system but asked me if I was sure I have an account with Identity. I do not know if he, in the way I was dressed and the fact that my hair was not combed because I just came from the gym, discriminated against me based on my appearance. It irritated me a bit but just let his comment passed and went to Identity's website and showed him that Blueroute Mall and Table Bay Mall do have stock. He did not even bother to call the stores and to verify if they did have stock. A lady asked, what I suspect is the Manager of the store, asked what was going on, I ignored her because she did not even have the decency to introduce herself first. I drove home and went on the Identity website and ordered the sneakers online myself. I collected the sneaker yesterday, the 11/11/2021 at Identity in Promenade Mitchell's Plain and asked them to apologize to me for the way I was treated. To date, neither the manager nor the sales person has made any attempt to apologize to me for the inconvenience. No effort was made to go the extra mile, no effort was made to assist me and feel deeply disappointed in the service I received and feel it is only fair to get a written apology from the persons who were supposed to provide excellent service to their customers.