This is for the lovers of the slots, who are the highest in number anyway given the popularity of these reels. The bonus is offered at any point of a player's casino lifetime; whether new or regular. The benefit is that this bonus allows you to earn money with spins and accumulate rewards.
Malaysia is a small South-East Asian country, and a regional economic power horse that attracts new investments to an emerging region. Malaysia is predominantly Muslim country, and all forms of gambling are formally illegal. The ban is loosely enforced. In practice international online and mobile casinos do accept clients from Malaysia.