Some casinos refund a portion of what a player deposits or spends in the course of making a deposit. This is known as a cash back bonus. This gives the player the advantage of spending less during the deposit transaction, which technically allows them to make bigger deposits in their casino accounts.
South Sudan is among the youngest countries in the world, having seceded from Sudan only in 2011. Currently gambling is not regulated due to the serious political instability, and it is not clear whether mobile casinos are legal. That being said, there is little to no access to internet, which impacts mobile gambling.