YMMV: Purchase a qualifying Samsung TV and receive 15% back on Costco Cash Card when paid with Costco branded Citi Visa Card

I received an email from Costco.
Purchase a qualifying Samsung TV and receive 15% back on Costco Cash Card when paid with Costco branded Citi Visa Card at Costco
https://www.costco.com/CatalogSea…tiPostcard