<prompt> Human: Just a PSA for everyone: I spent a good portion of my evening June 20th adding my new Costco Citi Visa to all of my accounts for which I used the Costco AmEx only to find that my card was already flagged for fraudulent activity when I logged on to my online Citi account.After spending about 2 hours on hold yesterday with Citi, I found out that it was the mobile wallet assignment when I added my card to my Apple Wallet that caused the flag. She said that most people call first when doing this so it was an automatic red flag in their fraud detection algorithm.Do other cards do this? I dont remember having to call American Express when I added my AmEx to Apple Wallet...This probably wont matter much after a week or two, but I imagine Citi will be swamped with calls for a while after the AmEx - Citi switch. Avoid the one hour hold times and dont bother with mobile wallet for now.  <response>: Huh. I must not be most peoples then. Ive never once called ahead before adding a card to a mobile wallet app.. 