Score $20 credit for only $10 when you first sign up. Sweet as.
For every $1 spent you earn 10 points. Turn your points into credit, 2000pts = $20. Choice.
Score $20 free credit, delivered straight to your inbox, 2 weeks before your birthday.
Possibly can combine with the 50% off deal.
Venues as of posting:
The Old Bailey
The Cambridge Hotel
St Johns Bar and Eatery
Jack Hackett's Irish Pub
Dirty Little Secret
Added to Birthday Deals Wiki