Rude staff and no service

I bought my 2018 Kia Picanto Smart from Menlyn, Pretoria last year. I received such good service from them, that I decided to pop in to see if someone can assist me with my car key's battery. The receptionist at new car sales was kind enough to show and escourt me to parts department. Upon arrival I greeted the two gentleman, with no response from them. One was looking down and on his computer screen, while the other was busy with a client. No one asked if they could help, they did not even indicate that they will assist me shortly. I just stood there for almost 10 minutes, when the one guy stood up and walked away. It was a small simple thing to attend to, which they did not even bother to ask. If this is the type of after sale service, I highly doubt if I will buy another Kia. I even settled the full amount last month on a brand new car?