Visa Inc, commonly known as Visa, is nothing more than an American multinational financial services corporation from Foster City, California. Its purpose is to facilitate electronic funds transfers worldwide, mostly by using a Visa credit/debit card and gift cards. There is not one online casino in this world which doesn't accept Visa for deposits or cash out.
Lebanon is a unique nation among its neighbors. Due to its multi-ethnic population, strong cultural ties to Europe and liberal political climate, it is a relatively friendly environment for gambling. Technically Casino du Liban, where the state holds the majority of shares, has a monopoly over gambling. But in practice, online casinos are tolerated.