see
http://www.bet2bonus.com/de/bonuses/12bet-bonusTERMS AND CONDITIONS
This promotion is eligible to all new members who register under the currency of GBP, EUR, USD, CHF, and AUD.
This promotion starts on 00:00:00 (GMT+8) 01 January 2011 until 23:59:59 (GMT+8) 31 December 2011.
Your initial deposit plus the bonus is subjected to 10 time(s) turnover in 12BET Sportsbook wager prior any withdrawal may be made.
Example of the bonus calculation:
DEPOSIT AMOUNT BONUS TURNOVER REQUIREMENT BEFORE WITHDRAWAL
GBP 25 GBP 5 GBP 300 (10 x [GBP 25 + GBP 5])
GBP 125 GBP 25 GBP 1,500 (10 x [GBP 125 + GBP 25])
GBP 250 GBP 50 GBP 3,000 (10 x [GBP 250 + GBP 50])
GBP 950 GBP 190 GBP 11,400 (10 x [GBP 950 + GBP 190])
Bets made below 2.0 (Decimal odd), void, tie, cancelled, or made on opposite sides with same outcome will not be counted towards the rollover requirements.