PEP Home shop 322A Centurion Mall Staff Horrible Service

I've in pep store shop 320 many times and the service is always. The cashiers don't greet customers, don't smile, don't communicate verbally with you and don't thank you for supporting the business as a customer when they done serving them. It was the same situation today when Vinolize the cashier assisted me. I greeted her she kept quiet, pointed the speedpoint without a word from her mouth meaning I must swipe the card and gave me receipt without a word and eye contact. How do I keep supporting the store I don't know why. Their service is pathetic.