Alcohol frei

A conversation in a pub …
Me: Do you have Erdinger in bottles?
Barperson: Yes, we do.
Me: Thanks.
Barperson: There you go.
Me: Er, that’s alcohol free.
Barperson: Yes.
Me: That’s alcohol free?
Barperson: Yes, it all is.
Me: Do you have the alcohol version?
Barperson: No, they only do non alcoholic.
Me: They mostly do alcoholic beer.
Barperson: Oh, I’ve only ever seen that kind.
Me: Ok, could I have a bottle of Heineken please?