CC / financial companies never correspond via email about this issues. The only thing you will get in your external email inbox is ATM transaction and shopping payment confirmations, but it is never interactive (you have to go through the phone for the other stuff).
Never be pulled in any direction by any unsolicited communications, whether it be by email, SMS, telephone, fax or even postage. (Yes, fraudsters are using the post again, likely using scammy marketing lists that are designed for them by 'marketing' companies that provide postal info with their databases.)
Delete, hang-up, crumple and toss immediately. If you have any interest in checking the validity of a communication, pick up your last few monthly statements and use the numbers provided there and place a call inbound to them. They'll have your records and will be able to provide advice. If the information you received was bogus, and it always is, you'll help them by reporting it.
Further, you should not divulge any information whether on email or even the phone. You should only give out information if you are the one that originated the dialogue.
Another risk is from those who know you. They can call or write Mom, Dad, neighbors, etc and ask things about you and use that info to do other things. You might not even have a chance to thwart them is what I'm sayin'.
The fact that such scammers aren't caught and prosecuted proves that all the human and civil rights violations we put up with to make us "more secure" aren't doing shit to increase security.
It would be trivial for the police to go through the motions a victim of a scam would go through and trace down the scammers if all this Big Brother bullshit did one damn thing to protect us from "bad guys". Think about that the next time the state says your teenage daughter needs to be strip searched to protect us from terrorists. They can't even get con artists stealing credit.
I should make an email filter that converts spam into fan mail.
Replace things like "Enlarge your Johnson with just this one pill"
with "Hey man your IQ test results are in, and you're awesome!"
or "Every time I'm mad I think of you".
But it would be even more fun to actually use spam for something productive. Back when I got a lot of physical junk mail I would dream of signing up for more of it and using it to heat the house. Fuel delivered to my mailbox, every day, free!