Lovisa Middlerg mall Mpumalanga deceiving advertising

Lovisa Middlerg mall Mpumalanga. Today, Sunday 26 November 2023 around 3pm. I bought kids earing that had a 50% black Friday sticker. The till didn't apply the 50% discount. Cashier informed me that some 'Black Friday Stickers' are put in places where there is no sale and also it might be that the sale has ended. Unfortunately she can't give me 50% discount as the discount is not on the system.

I wanted to pay with 50% off as per the sticker. How does the special end at 3pm? I guess im protected by the CPA and the false adverti*****ts is also non compiance to CPA.

I want those earrings on half price