Because free dating web sites don't require credit card information, you can't be entirely sure of a person's identity. (articlesfactory.com)
Payment - When you make your appointment we do require your credit card information to hold your spot. (adamscountyspca.org)
Federal law requires credit card issuers to make sure that you have the ability to pay your credit card; an increase in your limit is subject to this regulation. (valuepenguin.com)