Keep using AmEx until 19th – Start Using Citi at 20th

John

Keep using your American Express Costco card through June 19th (Sunday)
Start using your new Citi card on Monday, June 20th. 

Your Costco rewards will be carried over to your Citi card automatically

If you received your new Citi card, activate/check-in your card. You can do so by calling or getting online. It took me about 5 minutes (or less) to check-in online.

I don’t know about you, but I have absolutely no reason to use an American Express card anymore. I’ve always thought American Express was hoity-toity. Costco was the only reason I opened the account.