****ed off

I went to Pep Langa Junction to purchase sanitary towels when I got there I saw a promotion StayFree pads if you buy 2 you pay R36.00. I got to the till cashier scans the items and then I tell her these are on promotion then she says it is not showing on her side fine then she informs one of her colleauges who was willing to check and see why it is not giving the promo. Then came this other lady who also works at the store she is chubby with braids with an attitude "saying if it is not beeping on the system then it means its not on promotion" and that really ****ed me off because on the shelf it still shows it is on promo now she makes it seems like I am being difficult. If they did their job properly they should've known that the promotion has ended. Not make me look stupid.