Bad Service

I was at Checkers Hyper just now, shopping for dishes since I have visitors, I am soo upset because one of the cashiers made me look stupid, her name is Witness. I found a 3pcs casserole set for R179, then on the bottom shelf another one for R179, I took both boxes for cashier to check for me which one is big, at the till the big one scanned R299, I told her I double checked the price it was R179, the other one Witness went to check, she took long so I decided to check on her, to find her with the other lady who's probably managing that Aisle coming quickly to me carrying a price. I then she shows me the shelf which is now quickly repacked is no longer looking the same way. I tell her you rearranged this shelf it wasn't like this, she said no I didn't this is not my store. I felt soo stupid coz I know what I saw. Instead of apologising they made me look stupid.