Hello @Himatullah,
Thanks for stopping by the PayPal Community Forum to ask your question; welcome!
I'm sorry to hear you can't add your bank card because it was marked as bad. When you receive an error message stating the bank or card is marked as bad, that usually means it is not compatible with PayPal's system and cannot be added. I recommend adding a different card. You can learn more reasons why it may not be able to be added to our Help Center here.
Have a lovely day!
- Meghan
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