I think your keyword is “Bonuses at Bet365” and you will be killed by bet365.com every time.
Try something like (for bingo) 200% online bingo bonus. Or for the Sports book try Sportsbook Bonus for New Customers
Also, change your title tag to be more of a headline – like
Sportsbook Bonus for New Customers, 20 Pounds free Online Sportsbook ect
I like to colour of the page, layout is fine, but when you add more casinos you will be stuck with bet365 as your keyword.