I am pretty sure you have to be signing up for a new account and cannot receive these bonuses with existing accounts. The bonus program page also reads:
Quote:
Free books are sent after you've signed up with a site, made your first deposit, and played the requisite number of hands...
Since these programs are meant to generate new customers for the sites and you need to sign up for a new account using the links so that Two Plus Two is registered as your affiliate, you won't be able to use the bonus arrangements for existing accounts.
