Pay with xxxxxx card / Pay with xxxxx bank account links are one time use links .
If you did not receive a confirmation email after clicking the "Pay with xxxxxx card" / "Pay with xxxxx" link the first time you could do the following
Wait for a few minutes for the confirmation email to arrive
Click on "PAY WITH NEW CARD " or "PAY WITH NEW BANK ACCOUNT" link in the email and add your card/bank details to pay manually.
If you have received a confirmation email but clicking on the confirmation link shows a Token Error / Invalid Token error .
Click on "PAY WITH NEW CARD " or "PAY WITH NEW BANK ACCOUNT" link in the reminder email and add your card/bank details to pay manually.
You will be seeing this error if you are clicking on any of the Payment links within an email for which the invoice has already been paid . If you see this error it is a confirmation that the payment has already been made.
Please note that the above doesn't mean that the money has been transferred to the merchant.