Costco will start accepting Visa on June 20. The Citi website for the new Costco card will be live at that time.
Chase offered ‘warehouse clubs’ as a 5x earning category in the second quarter for their Freedom product. Clearly Chase wanted to get the message out that you can use their cards at Costco, too. In fact, Chase issues almost exclusively with Visa as a result of a flat rate pricing deal for use of Visa’s network.