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BILLING6 min readUpdated 17 Aug 2026

Replace your saved payment card

Add a new recurring card securely without exposing card details to oXnames.

OXWritten by oXnames SupportChecked against the current Knox workflow
WHERE TO GO IN YOUR ACCOUNTKnox > Billing & invoices > Manage payment method
BEFORE YOU START

Get the right details ready

Sign in to Knox using the account that owns the invoice or service. Have the invoice number available if you need to contact support.

Security first. Never include account passwords, card details or authentication codes in a support ticket.

FOLLOW THESE STEPS

Make the change in Knox

Work through each step in order. Keep this guide open in another tab if that is easier.

  1. 1

    Open Billing & invoices, then choose Manage payment method.

  2. 2

    Choose Add or replace card. You will be transferred to the payment provider secure page.

  3. 3

    Complete the verification requested by your bank.

  4. 4

    Return to Knox and confirm that the new payment method is marked as available for future invoices.

WHAT HAPPENS NEXT

Check that it worked

The replacement card or mandate appears as the payment method available for future recurring invoices.

IF IT DOES NOT LOOK RIGHT

Try this before contacting support

If bank verification fails, check the billing name and address, then contact the card issuer before retrying.

Open a support ticket →