I purchased an electronic gift card from Cardpool yesterday, my first time using that site. I was supposed to receive an email with the gift card number within 24 hours. I just got a call from Cardpool wanting to verify some info. She asked me to verify my address, a cross street to my house (not sure why they need that), and also wanted the phone number off the back of my credit card. It seemed rather strange to me. Should I be worried?