They must suspect you of doing something fraudulent, maybe with a different card even. First I have heard of this from Chase.

A review like this is why I never push my CC companies too hard.

Not saying you are doing this, but so many people on here want to get signup bonuses, immediately cancel, try to get out of the annual fee, push everything to the limit, etc. Never seemed smart to me.

There has to be something in a deal for the other guys.