To earn cashback from this offer you must download the Braindoku: Sudoku Block Puzzle app and complete world 6 within 30 days of installing. You must be a new player. After completing an offer there will be a wait before receiving your reward, from a couple of weeks, up to 90 business days. This is due to the specific brands and when they complete the offer transaction. The reward will not be given if a voucher code or discount code is used alongside this offer. Immediate cancellations will result in the reward not being paid. This offer may only be redeemed once per user. This offer is presented to you by Qmee on behalf of a third-party advertiser. Qmee does not endorse, and therefore is not responsible to you for, the advertiser's views, policies, products or services.