Go to Settings > My Plan

Click on Manage Subscription

On the Stripe Page, Click on + Add payment Method

Enter your Card Details and Click Add button.

Go to Settings > My Plan

Click on Manage Subscription

On the Stripe Page, Click on ⋯ > Make Default

The Default payment option should be changed.

Go to Settings > My Plan

Click on Manage Subscription

On the Stripe Page, Click on Update information

Change the address as required and click Save

Go to Settings > My Plan

Click on Manage Subscription

On the Stripe Page, Click on the payment method ⋯ > Delete

In the Confirmation Dialog click Delete payment method