Customer service none existent

I'm actually tired of these establishments that don't invest in customer services. Builders is a prime example. Mpo starred at me, I guess I' m supposed to greet her which I did. She rings up my items an then says to me come and put your pin on the machine. Now that, that right there got me so mad. I told her to ask me nicely because she didn't even greet me. Instead of doing the descent thing no. She starts arguing with me. \No ku were not listening i said please"she said. I then asked for a manage"