Bad service

I am at USave in Frankfory, going to buy airtime and I see a till with only two people I go there, then I stand behind the last woman standing there then comes the cashier tells me that the woman it's a last person she would be assisting. So I know from Woolworth’s as I was a cashier there " I must put a note stating that it's a last person " there he comes with an attitude telling me that this woman it's a last person in her que so I ask " were is the note that state that course there was none " so the next cashier wants to talk for him and I dismissed him, then the manager wanted to talk for him to apologize I told Her directly that I am taking that to Hello Peter as that was the bad service It's not the first time they need to be trained if a mistray shopper comes there it will be a disaster the feedback course some of them don't have CUSTOMER SERVICE I am an ex employee at [EDCON, ACCENTURE, WOOLWORTH’S, ESIZWE TECHNOLOGIES] plus I am a graduate in Marketing Specializing in Sports.