Gather the personal information of the person you would like to add to the account, such as her name and Social Security number. Have this information readily available when you speak to a JCPenney representative.
Locate the customer service phone number for JCPenney. You can find this number on the back of your credit card or at the JCPenney website.
Call the customer service line and inform the rep that you would like to add an authorized user to the account. According to JCPenney, contacting customer service is the way to add someone to the account.
Review then sign the Additional Cardholder Authorization form that JCPenney sends to you via mail or email. By signing this form, you accept responsibility for any charges made by the authorized user on the JCPenney card.
Mail or fax the completed form back to JCPenney. If using the mail, make sure you send the letter via certified mail, return receipt requested to ensure that it was delivered to the correct address.
Check your mail over the next three to four weeks to ensure the new card arrives. It will bear the name of the authorized user and must be activated prior to use. If the card doesn't arrive, contact JCPenney customer service.