The amount of revenue generated by the program is not known, but it was launched by the Marina Bay Sands casino resort in February 2015, the promotional material says.
“The purpose is to allow members who use China UnionPay, Visa and MasterCard credit or debit cards to make purchases of the resort entertainment vouchers and use it as a mode of payment for gaming chips,” the material reads.
China UnionPay also did not respond to questions about the program.
Marina Bay Sands defended the program, saying it complied with terms and conditions of use for China UnionPay cards.
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Ron Reese, senior vice-president of global communications and corporate affairs for the Las Vegas Sands Corporation, said: “The resort entertainment voucher program at Marina Bay Sands was designed to give guests increased flexibility in purchasing a variety of goods and services.
“We are pleased to be part of the UnionPay network, which allows Chinese consumers to purchase goods and services at locations in countries around the world. Marina Bay Sands operates the resorts entertainment voucher program in accordance with the terms and conditions of China UnionPay cards. We look forward to continuing to offer this amenity.”