Costco teams with Citi, Visa - Mar. 2, 2015 - http://money.cnn.com/2015...
Costco (COST) says it will start accepting Visa (V) rather than American Express (AXP) at its U.S. stores on April 1, 2016. Currently, the wholesale club retailer has accepted only debit cards and Amex for purchases in its stores or at its gas stations, although it also accepts Visa and MasterCard for online purchases. - Steve C, Team Marina