Jezyk polski 'ginie' kazdego dnia przed naszymy oczami, i musimy wszystko robic zeby to zatrzymac.
....rece do gory - 'kasa wchodzi na promocje' - chyba 'promocja' wchodzi (jak juz tak ma byc) na kase.
1. Have you already put the item/money through the till/cash register?
2. Have you taken the discount of? Is the discount already taken of? Has the discount been taken of? What has happened to the discount?