If you're paying for your premium subscription through PayPal and you would like to change the source you're using for the payment you can do that through your PayPal dashboard.
- Log in to your PayPal account.
- Click Settings Icon near the top of the page.
- Scroll down to Payment Settings and then click Preapproved payments.
- Click the name of the merchant for the agreement you want to change.
- Click Change in the Payment Method section.
- Select the payment method you’d like to use.