What does Sanya International Duty Free City mean by sending me purchase information?

Sanya International Duty Free City sent some purchase information to consumers. This may include product description, price, promotional activities and how to buy them. Sanya International Duty Free City is one of the largest duty-free shops in China, offering various luxury brands of goods, including cosmetics, perfumes, jewelry, watches, clothing and so on. Visitors can buy these goods in this duty-free shop and enjoy duty-free prices and preferential treatment. Purchase information is usually sent to consumers by SMS, email or mobile phone application.