Hi @satriyajt,
I'm sorry to hear that you're having difficulty editing your card information. Here are some troubleshooting tips for issues related to adding cards, but which also may have some effect when editing a card. If you continue to have difficulty editing the card information after checking those items, please contact customer service for further troubleshooting.
To contact customer service, please click Help & Contact at the bottom of the PayPal website for contact options, or reach out by Facebook or Twitter.
I hope this helps!
Olivia
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