Typically, if you simply join a casino site and play games for real money, you are already a member of its loyalty program. Most online casinos reward you with loyalty points every time you place a bet. So, you don’t need to worry about how to join the program. However, there are sites that offer VIP clubs for high-stake players. Casinos send them invitations to email. In this case, you will need to do special things like bet more on games and claim bonuses to the maximum.