When you update your payment details, the new method or details will be used for the next charges from then on.
To change your payment details, select your username and click on Account Details within the form builder account. Afterward, select the Change Payments Details button. This will open your 2Checkout account.
Once the lightbox opens up in 2Checkout, you can change the credit card information.
After you entered the new details, go to My Products and click on the Renew now button.
Important NoteYou will need to manually renew your subscription each time a monthly/yearly payment fails to go through. This can happen for various reasons (insufficient funds, expired credit card, the bank declined the payment, etc).