I Think they give out so many free chips, in the hope that if someone likes a particular game,they will deposit when the free chip is done,and theve got you all ways,if you win with the free chip,they may not pay you saying you are abusing the system,(if you are),and if you win with a deposit, they also may not pay you,saying that you have previously abused the system with free chips,Most of them are a bunch of """""""
Not all though,some of them are ok,I once got up to 78000 with casino Peru,and new that they would not pay,so made a lot of high bets till it was gone,and again I won 6000 at casinoscotland and cashed out in just 24Hrs.strait to my netteller account,so they are not all crooks..Good Luck all