The President of the Office of Competition and Consumer Protection (UOKiK) in Poland addressed concerns over a promotion by Jeronimo Martins Polska, the owner of the Biedronka retail chain. The promotion "Magia Rabatów" offered a voucher for toys and books, but failed to disclose limitations to specific industrial or textile products. UOKiK criticized the lack of transparency and detailed product information, leading to a requirement for Jeronimo Martins Polska to issue new vouchers worth 150 PLN each to affected customers. This case highlights the importance of clear and transparent promotional terms to prevent consumer deception and ensure compliance with competition laws. Competition law advisors should take note of the significance of transparent communication in promotions to avoid misleading consumers and adhere to competition regulations.