yeah its freeplay to get a 100% match bonus, max 200 they say but I only got 50 while I won a lot more... pretty lame imo.
review on this site states you get to keep your winnings up to 100.

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You are now chatting with Lopez
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Lopez: Hi, and thank you for using our Live Chat facility! Allow me to introduce myself as your chat representative. I will be assisting you, how could I be of service...
Me: Hi I got this email:
Me: Dear xxxxx, (xxxxxxxxxx)
You did it! Now you must claim your reward!

Congratulations! You’ve just started playing at Players Palace Casino, and you have already won 50 on free play – without paying any deposit!

This free play bonus is yours for the taking, so claim it now and continue your winning streak at Players Palace Casino by playing over 400 casino games and the biggest Progressive Jackpots ever!

To claim your bonus, simply:
Login to the software
Click on the banking section
Make a minimum deposit of $20.00 or more to receive your 100% Match bonus.
Your bonus will be added immediately to your account balance, allowing you to start playing right away!

Hurry up - your FREE 50 is waiting for you!

Warm regards,

Steven Barry
Casino Manager
Lopez: Make a minimum deposit of $20.00 or more to receive your 100% Match bonus
Me: deposited 20 and only got 100%
Lopez: the bonus might take upto 2 hours to show
Me: so no 50 on top of it?
Lopez: its clearly stated on the e-mail
Me: lol no I find it misleading
Me: very
Lopez: your 50 is upto how much you can get a 100% match
Lopez: those are your winnings, the bonus that you can get if you deposit equal amount
Me: lol
Me: thats no winnings.. thats just a bonus
Me: ok ill add this too on latestcasinobonuses.com
Me: will warn as much people as I can
Me: so will make your job a little easier I guess
Lopez: there are terms on conditions that you sign before taking this offer
Lopez: as you wish, we are here to give information.
Me: ok anything more to add?
Me: I know
Me: goodbye

Amen!  They are tight with the bonuses, for the most part.  After you've signed up, enjoy the occasional bone they throw you with the 50% match.

As far as the "keep what you win" bonus... again, read the t & c's very carefully.  It's easy to get led down the garden path with this particular carrot on the stick.