To begin, sign in to your Proxidize account from proxidize.com or by navigating directly to app.proxidize.com.
From your Proxidize Cloud dashboard, click your initials in the top-right corner of the screen. A dropdown menu will appear where you can select Billing portal.
Once that's done, you will be able to see your billing portal, after which you will be able to see the "Payment Methods" tab on the left side of your screen.
You can delete your existing payment method or add a new one by using the "Delete" button next to the payment method you'd like to remove or the "Add Payment Method" button to add a new one. To set a preferred payment method as the default for future payments, click on the "Make Default" button.