How to add/ change credit cards?
You could add and change your credit card in the Subscription Settings.
1. Go to Settings and select Subscription in Billing
2. Click "+ Add Card" in the Payment Method section
3. Add Credit Card and Billing details and click Confirm
4. Change your new card to default payment by clicking "Make Default"
5. Please note you can only remove the old payment method when you add a new credit card