18+. UK&IRE. Online only. Place a qualifying bet on any international football market from 8am 02.06.2021 to 10.06.2021 for 1 stamp. Plus, get 1 stamp for each day you place a qualifying bet at min 1/2 odds on any Euro 2020 market between 11.06.2021 and 11.07.2021. Max 1 stamp per player per day. Max 30 stamps in total. Get a free bet for every 3 stamps. Free bet valid for 7 days. No Cash Out. Stake not returned. Bet type restrictions and exclusions apply. T&Cs apply.