Please teach your sellers to be more correct and polite. I talked to one of the sellers today! We are talking about exactly one girl... There's no need to explain professionalism to her-she won't even understand it. I would like to hope that she will at least be "forced" to be polite.
Sellers are constantly not at the checkout, very often they are not even in the hall, not one. But when you don't need to, they will follow you around and keep a close eye on you.