Disrespectful cashiers

On this day 8 July 2018 I experienced disrespectful manners and horrible attitude from two cashier's at pick n pay centrewalk Pretoria cbd. Went to the store to buy lettuce, tomatoes and cucumba as i was making Greek salad, went to the tills to pay when I got there the cucumba didn't have a barcode the cashier then told me to fetch another one as I was in a hurry I didn't mind after paying she now tells me to take it back that's where everything exploded , I told her that I can't she started giving me attitude , disrespecting me in front of other customers i told her that m going to report her she just laughed it off as if nothing happened the other cashier started interfering in our matter not bearing in mind that she is also serving other customers , one customer behind me told the cashier to shut up they were wrong and didn't have the courtesy to say sorry pick n pay train your stuff to mind their tills and not interfere in other people's tills , they made my day sour if ur employee's are ambassadors of ur business with this kind of cashier's then sorry to say this but you are going to loose customers