Marshalls review: Customer service

Yesterday while at the check out, the cashier told me that the baby's decorative pillow, the one that had the white sticker, was not the correct dept., and went to check with the manager I guess, came back and said that it's not $2.99, but $4.99 She was rude, and when I said that it's not the customers fault that, that someone had attached the wrong label, she said it happens all the time, and customers change stickers. This was so wrong to say, especially that it was original, white sticker( not red, or yellow) I left the item, so, because of $2 difference she had embarrassed me. This store located in Columbus, OH, Lewis center