Forewarned is forearmed. We keep on giving you the examples of online casino rules you should know to avoid troubles and misunderstandings.
Pay systems. Pay systems for depositing money may not be in the list of pay systems to withdraw money. Then you'll have to choose one of the available systems. Some online casinos are entitled to withdraw money with the system different from the indicated one. Be aware that the casino and the pay system ususally charge a commission on money withdrawing. Before using the pay system find out about possible commissions. It's possible you wouldn't be able to withdraw big sums of money within one day, as there are limitations of sums withdrawing.
Money withdrawal. This may be strange, but some casinos (not all!) charge a commission on money withdrawal if the bet turnover is less than the sum of the first deposit.
Bonuses and bonus policy. This thing must be learned particularly well. Bonuses are not free gifts or free cheese in a mousetrap – you read and agree with all the rules of getting bonuses. After getting bonus your money +bonus get to the special bonus account or two separate accounts. Any operations or transactions at your bonus account should be postponed until you fulfill the bonus wagering requirements. For example, if you make request for money withdrawal all your bonuses will be canceled, at some casinos money withdrawal is impossible without meeting bonus wagering requirements. The player can get bonuses only with the certain amount of deposit or bet turnover. Any bonus has "expire date": if you don't make bets with bonus money within certain period of time bonus money will be marked off from your account. As you know bets in some games are considered only partly for wagering playing requirements. So if you use minimal risk game strategy (betting on red and black in online roulette) internet casino may consider you as a cheater and all your bonuses and winnings will be marked off from your account.
You should always remember that online casino isn't the way of making money, it's the game, the pleasure trenching upon disappointment. By agreeing with the rules of playing at online casino you consciously agree to accept winning as well as losses.