Make this season one to remember by winning some of Betsson's Summer Holiday prizes. The annual Summer Party for our colleagues in Estonia was a blast! Held at the picturesque Laukataguse Holiday Village near Tallinn. July 3, - Reading time 4 min. Summer Holiday Boosters: Play casino to win prizes such as cash, the. Come and boost your Casino fun with great monthly and weekly rewards. . Take part in this huge summer promotion at Betsson as every month until September you get to collect tickets to one of three monthly prize draws. In Week 3 from May 18th to 24th, players stand the chance to win a holiday to. On behalf of all of us at Betsson Group we wish you all the best for the holiday season and a wonderful new year We thank you for. The Summer Holidays promotion is currently underway and has two more weeks to go. What is the Holiday Booster Promotion.