This is a refund that players get after depositing in their account. While their betting account does not grow in size, the cash back bonus offers the bettor's bank account some consolation. The benefit of this bonus is that it is given immediately after the deposit without any conditions attached.
Israel is known as the "only democracy in the Middle East", and is a strategic ally of the west. Gambling is strictly regulated and mostly illegal. Technically, online and mobile casinos are also prohibited, but in practice, playing in foreign casinos is possible, and players are not actively prosecuted. This makes mobile online gambling casinos relatively popular.