Credit Card Age Verification?

On some of those adult sites or any sites in general, is it safe to give your name and credit card number for "age verification"? Even if it is safe, will you be notified of the information you have given away via bill or phone call? Is there any way the owner of the credit card can be "re... show more On some of those adult sites or any sites in general, is it safe to give your name and credit card number for "age verification"? Even if it is safe, will you be notified of the information you have given away via bill or phone call? Is there any way the owner of the credit card can be "re informed" that their card has been used for age verification?
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