When it comes to competing in the mobile payment arena, Samsung has a plan to convince customers to pay for stuff with its technology: the company is offering up free gift cards to people who sign up for Samsung Pay.

While it’s not a cash payment you can use anywhere you want, anyone who activates the mobile payment system between Nov. 20 and Dec. 31 on their Samsung Galaxy S6, S6 Edge, S6 Edge+ or Note 5 can register to claim a $50 Best Buy e-gift card, the company says on its site. Supported carriers include all the big ones: Verizon Wireless, AT&T, Sprint, T-Mobile and U.S. Cellular.

Samsung Pay works much like other mobile payment systems, allowing shoppers to pay for things from their phone using NFC (Near Field Communications), after they’ve linked their device to a credit card.

Samsung announced recently that it has one million users in South Korea, but it’s got some work to do with U.S. customers, hence the Best Buy promotion. Apple has said in the past that Apple Pay had more than one million sign-ups in the first three days, but it hasn’t come out with any updated figures since then.

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