Your payment was not accepted for one reason or another. What you could do is either one of the following:
Try again (it could have been a temporary blip)
Send your donation by post to:
WWF International (DonationsWB)
28 Rue Mauverney, 1196 Gland, Switzerland
Still having problems?
Is this is second time or more that you have seen this page? We are really sorry! Please contact us at firstname.lastname@example.org.