The process to update a customer's payment details within Stripe is the same for both one-time and recurring payments.

\ 1. Log into your Stripe dashboard.

\ 2. Select the Customer option from the menu that appears on your left.

\ 3. Now find the customer whose details you wish to update and click.

\ 4. Scroll down to Payment methods and click Add. Now input the new Card details.

\ 5. Next, delete the old card and the new card will automatically be set to the default.

The payment details have now been updated.