@FiddleSix @futurebird @waldoj
At least in Europe (where the following would work) the lesson is, always that you call the bank.
"What card you are calling about? ... OK I call you back on the service number"
You never talk about anything (not even your name or whether that's one of your cards or your address) with the caller if the other party has called you.
My bank, unfortunately, has become pretty sluggish and phone service which was very good for decades (most of my life) until a year ago, is now not any more. I might have to change if this continues.