Step 1: Log on to eLong.net and Sign In to your account.
Step 2: Go to " My Account" and then click the " Credit Card Info" link found on the left side of the page.
Step 3: Click " Add a Credit Card "
Step 4: Enter your credit card information. When it has been verified you will receive a ' Valid Number ' message. Please complete the additional information that appears and click ' Submit ' to finish the process.
Step 5: At the end, you will automatically return to the page below. Now your credit card information is listed here.