Poor Sales Assistants

I saw the add accidentally at the L'Oreal stand which states that I qualify for a free gift, if I purchase products to the value of R399, yet the assistant that helped me to get the colour foundation that I need, didn't inform me about it. When I paid at the cosmetic counter, as instructed on the add, the sales person didn't offer the promotion either. My purchase was over R400 on cosmetics from L'Oreal PLUS a serum/ filler for R219. When I questioned it, she went to check the add and collected the gift. Pathetic sales people. Don't they want to work there??? I will do it!