I do not have a U.S Credit Card. Can I pay Vonage bill using International Credit or Debit card.

Vonage will accept the credit or debit card with U.S billing address. In any case if the payment fails for any reason, you can process the balance using any other person like friends or relatives credit or debit card.

If you have an international credit or debit card you can try processing the payment with out changing the billing address on your account.