Why did PayPal charge $1 to my card?
We make this temporary charge to every card added to PayPal. When you add or edit any card in your PayPal account, we’ll charge the card up to $1 USD to verify that this card is available for online payments.
The charge will appear in your PayPal account activity. We don’t collect the charge, so it'll show as “pending” until we’ve verified your card.
Depending on your bank, the charge will remain for a few minutes or up to 30 days. You may see it even if your card isn't approved for use on PayPal. If the charge remains on your card after 30 days, contact your card issuer.