Chasepay 10X at bestbuy instore for chase freedom upto $400

https://www.bestbuy.com//site/mis…t=chasepay
Offer valid in-store only. During the promotional period of January 15, 2018, to February 4, 2018, earn an extra 9% cash back on up to $400 in purchases at Best Buy® when you check out with your Chase Freedom card using Chase Pay.The bonus cash back earned is in addition to the 1% cash back you earn on all purchases for a total of 10% cash back.
not sure if it works for freedom unlimited or sapphire preferred or reserve.
not sure if this will be clubbed with 5X wallet purchases or a total 15X would be given.