Paypal declined card registered in the US. They received a message to contact the seller. Any advice?

I’d like to share some helpful information about handling international transactions, UBQ-PGR.
 

When you integrate the PayPal app with QuickBooks Online's Accept Card Payments feature, you can securely send invoices with a “Pay Now” button. This enables customers to make payments using Visa, Mastercard, American Express, or their PayPal wallet.
 

Since your client's PayPal card was declined, here are possible reasons why:
 

• The information they entered may not match the details their card issuer has on file.
• The payment amount may exceed the limit set by the card issuer.
   

If all the information provided is correct and the card is still declined, I recommend advising your client to contact PayPal directly for assistance.
 

Feel free to reply here if you have any additional questions about processing your client’s payments.

@UBQ-PGR 

If you are running a service company, consider having a proposal management app to sync with QBO and accept international credit cards.