Hello @Hosam_Elsaied and everyone!
Welcome to the PayPal Community! I'm sorry to hear you've run into some issues adding a card to your PayPal account. If the card has been declined by your bank, normally we recommend reaching out to your bank to see what the issue may be. However, here's a Help Center article you may find useful: Why can't I add my credit or debit card to my PayPal account?
Good luck!
- Jon K
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