Ether

I want to work at home, giving advice online. We need jobs, my roommate and I. I signed up for this job today and right before I got listed, they wanted my credit card number for "verification". Here is what they said: "To complete your Ether listing, a valid credit or debit card is required. Your card will not be charged – this is for verification purposes only." I called my bank and the woman said not to sign up. So I called Ether and the rep named Andy said, "We need to verify your age. We need your credit card number". I asked them about giving them my State ID and date of birth. He goes, "No, we need your credit card number."
I then asked him to dissolve my account with them.
Don't sign up for ether. Why would they want your bank number just to verify your AGE?!