Very rude and false accused

I took a box of I$J fish fingers while doing shopping at Game Lake side mall , I went to the till to pay , they rang u my goods , the price of the fish fingers was wrong ,so I told the cashier the price is incorrect , so my husband went to check the price in the frigde , my husband then took the price tag from the shelf to show the cashier , the shelf packer (organiser) then came up to my husband and told him he must not remove the price tag from the shelf then said how does he know my husband got that tag from this Game store , so my husband rep**** the price tag says I$J fish fingers then my husband wanted to show him that the bar codes is the same , the shelf packer grabbed the tag from my husbands hand and said my husband does not have any proofe of where he found the price tag , how rude and dare he speak to customers that way ..