Betfair Casino update

If you haven't done the Casino bonus on Betfair yet, a friend just told me this:

If you play in the Casino for playmoney, they will send you an offer via emal "bet £20 in the Casino and get £20 for free".

This offer has a little less EV than the 100% match offer but it's a better offer if you wanna be sure to at least win something...