Playing at Club World Casino 0-starting Thursday, May 10 till Sunday, May 13? Want a little insurance? Club World Casino offers all players a 30% cashback offer if you play from Thursday, May 10 to Sunday, May 13. If you are not lucky enough to make an overall profit, you can receive 30% cashback on all deposits made during that time. If you didn't make a profit, email support at firstname.lastname@example.org on Monday and your cashback will be in your account within 48hrs.