I know that most of them, if not all, offer these bonuses as non withdrawable. On most of the sites you are allowed to play at least some of the real money rooms/lounges with free money. Some sites offer no limit access to all features of the site. Here its different because you can only play in free playmoney room/lounge. One cannot try other rooms at all. That's why I thought this should be pointed out. In their terms, and believe me I have read them, and FAQ section it looks like there is playmoney/free bingo room and also there are terms regarding bonus or how they call it trial money where it is explicitly said that all winning from it are non withdrawable.
With all that said, if someone reads their T&C and FAQ section it is completely normal to conclude that bonus money can be used in real money bingo rooms, but that is not true at all. They take your profile info and give you $30 worth of playmoney which can only be used in single bingo room, one that is called FREE BINGO room.
Being a
poker player I compared it to some sites and here is what that offer would look like on lets say
Poker stars.
Sign up now and receive 3x $1000 in one hour every hour, no deposit needed. All winnings made from free no deposit offer are non withdrawable. Bonus money itself is non withdrawable.
See why I felt this should be pointed out.