One client has been trying to pay several invoices I have sent via PayPal with their credit card. 1 invoice was received and paid successfully, but 3 other invoices to the same email (and paid with the same credit card) were not successfully processed. The client says she paid them the same way and no errors were reported, but no money or transactions were actually recorded. I have not purposefully asked for any kind of "sandbox" transactions. Can any one suggest how I follow up with PayPal to see what is happening to these payment attempts?
