To update the credit card details for your iNewsletter subscription:
- Go to the Dashboard
- Open any Publication that is associated with the subscription's card details you're wanting to update
- At the top of the screen, choose the Settings tab
- Scroll down the the Billing Settings section
In there you can enter the new card details. If you received an email notifying a failed payment, this payment will be automatically retried after a few days.
If you have multiple subscriptions, you will need to do this for each subscription. However, if you have multiple publications associated with the one subscription, you only need to open one publication, and enter the new card details in there.