This sort of bonus means that a player gets a refund of some money used in the betting process. It may be an assurance that one is refunded if they lose the first bet, or reimbursed the service charge when betting. The guarantee allows the player to bet without risk of loss for some time.
Saudi Arabia is undoubtedly the top oil exporter in the world, and its vast reserves guarantee this situation is not going to change shortly. Islamic law forbids any kind of gambling activity. For this reason, live online gambling is illegal in Saudi Arabia, and the government has established harsh penalties for gamblers in the country.