If you want to cancel your casino welcome bonuses, you need to log in to your online casino account and proceed to the Promotions section of the website. Here you'll find the list of your active bonuses, with the cancellation option in front of each of them. Alternatively, you can have your bonus canceled by messaging the customer support team with a corresponding request. Worth noting, if you decide to cancel a bonus, any associated winning you may have collected will be forfeited.