This happened to me with Chase also a few years ago. After checking out w/over $400 of groceries, card denied. We went over to the side, frozen and refrigerated products thawing, and got the same story from Chase…fraud protection, etc. and said that we normally don’t spend that much at the grocery store.
That set me off, because we DO normally buy that much at the grocery store! (we don’t shop often) On their card!
I think everybody in the store could hear me scream into the phone that if it ever happened again at that grocery store, i would chop their card up into little tiny pieces and they’d never see another penny out of me.