casino848 has blackjack attack promo as follow,

When: 27th of each month, 00:00-23:59 GMT
How many winners? 50 winners
Top prize? 665 EUR
 
Total of all prizes? 2,710 EUR   
How do you win? Play BlackJack during event hours and accumulate as many points as you can. The more you play, the more chance of winning!
What can you win? Highest point accumulator will win 665 EUR
2nd position = 500 EUR
3th-5th = 165 EUR
6th-30th = 30 EUR
31st-50th = 15 EUR
 

Make sure you’re part of our BlackJack Attack to win big!

Results will be updated on the Races and Tournaments results page.

All winners in this event will be sent a notification email within 24 hours of the event ending (but not at weekends) and asked to claim their bonus.

Special Terms and Conditions apply, click here to read

To qualify, you must deposit at least 65 EUR during event hours.
If two or more members accumulate the same amount of points during the event, then the member who reached this amount first will receive the higher bonus amount.
Results will be updated on the Races and Tournament results page.
Winning members will be sent a notification email within 24 hours of the event ending (but not at weekends) and asked to claim their bonus within 3 days. Bonuses will be credited to winners' accounts within 24 hours (but not at weekends) of a successful claim.
In order to cash out this bonus, an amount totalling no less than 20 (twenty) times the bonus amount must be wagered. For deposits made via Neteller, an amount totalling no less than 50 (fifty) times the bonus amount must be wagered.
To find out how to accumulate points click here.
Cashouts requested and subsequently cancelled during an event do not qualify as a deposit for that event.
Any winning members who took part in this event by playing the casino games via their Poker betting software, must wager their bonus only on casino games.
Bonus Policy applies.
Low-risk bets will not be eligible for any of our events.
This event is open to all members of the Cassava Enterprises group.
VIP members are not eligible for this promotion. For exclusive VIP promotions visit here.
In the event of any discrepancy between the meanings of any translated versions and the English language version, the meaning of the English language version shall prevail.