As the name says, this is free money deposited in the player's account by the casino even without they (the player) having to initiate a transaction. This bonus is given either as a reward for staying loyal or a way to usher in new players. The player can use it as they please depending on their skill.
Tunisia is a beautiful country in North Africa. It is a great tourist destination and has been used as the set for a number of Hollywood movies, such as Star Wars. Tunisia does not have any online gambling sites. Online gambling is not censored by the local government and so players can use foreign sites.