People in the U.S. are buying Powerball tickets and using Taobao, a Chinese e-commerce website, to sell them to people in China at an inflated price. Only a few thousand have been sold so far, and Taobao has already caught wind of the venture and is deleting sellers’ profiles, according to NBC.

One seller, a student studying in the U.S. who wished to remain anonymous, buys the tickets for $2 and sells them for about $3.80. If someone wins the jackpot, he’ll charge a 10% service fee. The young entrepreneur says that he sold 600 tickets in just three days, earning himself over $1,000. “The huge prize money has made more and more Chinese people notice Powerball,” he told NBC.

The prize is currently at $1.5 billion, the biggest lottery jackpot in North America. If someone gets really lucky, it would be the world’s largest jackpot ever awarded to a single person.

Dong Peng, another Taobao seller, discussed the logistics of getting the prize money to customers. He told NBC that if the payout is under $100, he can simply transfer it electronically. But in the event that someone wins a much larger sum, “it is not safe to help them to collect so much money in that situation,” he explained. Peng suggests that his customers get a lawyer or financial advisor to help them figure out the best way to go about collecting the money.