Originally Posted by oklAAhoma
Hmmm. Thanks for the input. That makes me think that it must be unsigned activity that is triggering the fraud alerts. I don't remember for sure, but I'll bet that the fuel charges that were questioned were from unattended readers. And they only swipe my card at DFW, I don't ever sign anything, that factor coupled with a Texas parking lot and an Oklahoma home address apparently triggers a fraud alert -- at least when my husband is using his card elsewhere at about the same time.
The gas stations near me have begin requiring that you input your billing zip code before paying at the pump, as a way to cut down on fraud at them. If you think about it, it's one of the few places where you can use a CC without either signing for it or providing your home billing address (in the case of most online orders).