Create an account: Before you can unlock birthday bonus offers, you will need to create a player’s account by filling in the information requested by your chosen casino.But in general, the most common birthday promotions will follow the same claiming process, which is as follows: The steps to claim your birthday reward will vary from casino to casino. Most casinos have different types of casino bonuses, so you should take some time to explore them before committing to any particular one. This can come in the form of free spins, cash bonuses, and other perks. In case you are new to the term, a casino birthday bonus is an offer that entitles players to extra rewards on their special day.