With a cash back, you actually get a refund of the money you deposit in your betting account. Sometimes it is the deposit cost that gets reversed or a certain percentage of the deposit you make. The benefit of such a bonus is that you receive your reward immediately; it is available without conditions.
Norway is one of the few European oil producers and one of the wealthiest states in Northern Europe. Gambling legislation is somewhat peculiar in Norway. While technically illegal, individuals cannot be legally prosecuted for playing in online casinos. This makes international mobile online gambling casinos, in theory, available for Norwegian players.