We have noticed a new scam going around where people on the phone or through email pretend to be from the bank. They will provide you with the first 4 digits of your card to "confirm" that they are from your bank. Please note, the first 4 digits of a bank card are the same for everyone and this is not a way to confirm with the person on the phone that they are indeed from your bank. If you get a phone call like this, call your bank directly. If you get an email like this, do not click on any of the links in the email and phone your bank instead. Never give out your information without being absolutely sure who you are giving that information to.
You are not being rude, you are simply playing it safe!