Step 1: Login to your Appy Pie account and go to your app/website overview page.
Step 2: Under Edit, Test & Go Live, click the Billing Info card.
Step 3: In the side menu, click Manage Payments.
Step 4: Click Payment Method in the navigation pane.
Step 5: Under Payment Methods, click the Edit icon next to your payment method.
Step 6: In the “Update Payment Method” popup, update your card details and click Continue.