Costco Canada dumping American Express for MasterCard - National

MasterCard Canada has reached an agreement with Costco Canada, which will end its 15-year-old relationship with American Express on Dec. 31.

Does Costco Accept American Express? Find Out Here

Capital One Ends Its Partnership With Costco

American Express Says Customers Falling Behind on Payments - GV Wire - Explore. Explain. Expose

Does Costco Accept American Express? Find Out Here

m.wsj.net/video/20150213/021315moneyamex/021315mon

Costco Canada switches to MasterCard from AmEx - The Globe and Mail

Costco dumps AmEx in major shift in credit card industry (Video) - Sacramento Business Journal

s.wsj.net/public/resources/images/MW-BQ751_costco_

Costco to ditch AmEx cards at U.S. stores next year

American Express misses forecasts, hurt by Costco loss

Sam's Club or Costco: Which is better? – Orange County Register

Costco just killed my favorite credit card

BIN List & Range for MasterCard, Visa, Amex, Diners, Discover, JCB, CUP