While new players have a welcome bonus, regular players have the so-called reload bonus. As the name suggests, a reload bonus is given when players reload (i.e. make deposits other than the initial deposit) their casino accounts. The bonus is targeted at regular casino players by ensuring that they get more value for their subsequent deposits.
Oman is an Arabian country of fantastic nature and history. It's also one of the countries which base their laws on Islam, making all kinds of gambling completely illegal, including mobile and online gambling. However, this is only in theory. People have found a way to gamble underground, and especially using mobile online gambling through foreign websites.