Many people are being scammed by someone using their credit or debit card since 2010, they explained its some casino/resort in Singapore called RWS E-Services.
Resorts World Sentosa is an integrated resort on the island of Sentosa, off the southern coast of Singapore. The key attractions include one of Singapore's two casinos, a Universal Studios theme park, Adventure Cove Water Park, and a Marine Life Park, which includes the world's largest oceanarium.
Many can prove its a scam because they do not own a passport to go Singapore and did not buy the ticket to enter Universal Studios theme park.
http://en.wikipedia.org/wiki/ResortsWorldSentosa