A cash back bonus is the bonus that players get upon depositing a certain amount of money. The cash-back reward is a percentage of the deposit they make. In most cases, though, the reward cannot be withdrawn immediately, and players are required to use the reward to place other bets or play.
The Victoria Falls are located on the border between Zambia and Zimbabwe and are considered to be the finest waterfalls in the world. Some forms of gambling are legal in Zambia, although the laws don't mention online gambling. This means that citizens can register and use gambling sites that originate elsewhere in the world.