Make sure all your payment information is accurate and up to date.
Clear your web browser cache or try using another one.
Bank Card: check the expiration date and CVV/CVC.
Try another payment method.
Make sure your Place of Residence matches your current location.
Contact your bank, card issuer or financial institution and verify the financial status of your account.
Good to know
Should a payment method give you trouble to complete, try a different one.
Bank Card: multiple payment attempts may result in temporary blocking of bank accounts and online payment gateways to prevent fraud (usually for 24 hours).