You can only use the services of Click2Pay if you are over the age of 18, all of the online and mobile casino sites that accept Click2Pay will only allow players over the age of 18 to access their real money games, and you will need to prove you are over the age of eighteen to play at those casino sites. US player accepting casino sites that accept Click2Pay will require you to be over the age of 21 to access and play their real money casino games.