I believe they are part of the Vegas Red, Del Rio Casino and Casino Tropez group. But just to be on the safe side you might check out got2bet.com as I signed up for the three that I mentioned through got2bet.com and I think you can sign up for Europa through the got2bet.com site as well. Have a good one.
The monthly looks to be sticky1:
100%, Up To $100 Monthly Deposit Bonus!
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All PLAY BONUS credits are for wagering purposes only. (No withdrawal will be honored for an amount less than the PLAY BONUS. Upon your FIRST withdrawal (regardless of the number of deposits), any amount up to the equivalent value of the PLAY BONUS will be deducted from your play balance or winnings prior to settlement. The first credits wagered will be deducted from your deposit(s) rather than from the PLAY BONUS).
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