What specific benefits does the UniCredit “Welcome Bonus - Biedronka” promotion give me?

Participating in the promotion gives you the opportunity to receive a voucher worth 200 PLN for shopping at Biedronka. This voucher consists of 4 codes, each worth 50 PLN. After accepting the promotion’s terms, you can generate these codes in the UniCredit app. Each 50 PLN code can be used at either a staffed checkout or a self-service checkout in Biedronka stores.