Why am I charged 1 USD after I add or update my card in my PayPal account?

When you add a card, or update information on the credit card linked to your PayPal Hong Kong account, we need to make sure your card is still valid for online payments. We do this by temporarily holding 1 USD (or local currency equivalent) on your card, but you won't actually be charged. This temporary hold will be removed from your card account within a short time.