After you Sign in to your MalCare account:

Step 1: Go to the Account option in the top right-hand corner.

Step 2: From the drop-down menu, select Billing & Invoices

Step 3: It’ll take you to the Billing Info page where should be able to see a button called Change Card. Click on the button.

Step 4: On the next page add details of the new card and click on Save Card.

Learn more:  How do I change my current billing address?