Bonuses for using payment systems of specific brands are very rare, especially when it comes to major companies such as Visa, Maestro, American Express, JCB, and UnionPay.
Although online casinos sometimes promote new or exotic payment channels by cutting fees or providing various perks, chances are you will find a standard list of bonuses: welcome rewards, loyalty bonuses, extra credits to real-money deposits, as well as daily/weekly/monthly ratings and tournaments with succulent prizes for top punters.