We have two completely separate credit card systems, so it is important that you update your credit card for the correct system, as updating one does not update the other.
To update the card for your PredictWind Forecasting subscription:
Please log in to your account at http://forecast.predictwind.com/ on a Laptop/Desktop web browser.
Click on the settings wheel at the top right of your screen.
Select Billing.
Click on the update Credit card box and fill in the details of your new card
Click on Update Card
The next time your subscription is due to auto-renew your new credit card will be charged.
To update the card for your Iridium Airtime Plan:
Please log in to the Portal at https://satellite.predictwind.com/login with your Username
Click on settings
Click payment then view billing portal
Click add payment method.
Enter new credit card details
Ensure that you tick the box "use as default payment method"
And click add (which saves the new card to your account)