[jbotdev]

I’ve actually run into this more with debit/cash accounts than with credit cards. I’ve had checking accounts frozen, but I’ve never had a credit card entirely suspended for “unusual activity”. At worst they’ve declined individual charges until I called, or I just switched to a different card, since it’s easy to have many redundant credit cards.

[ghaff]

For travel, etc. it's absolutely a good idea to have multiple redundant cards (that aren't issued by the same bank). I haven't had issues for years, but I have had issues in the past and it's a lot easier to just pull out a different card than deal with international calls trying to get a problem resolved on the spot.

[Chris2048]

I have CCs suspended all the time, requiring verification (often steam purchases..). In this case I'm talking about the entire account, and linked CCs, suspended for activity - all incoming payments, card payments and direct debits suspended.