Let's update your monthly auto payment subscription.
Changing your monthly auto payment to a bank account auto draft isn't available right now. You can check the payment options available in QBO for more details. To make this faded out option available and use a supported card for monthly payment subscription, I recommend using a private browser.
Private browsing mode prevents cookies from making QBO missing functions, such as the option to change the payment method.
Open a supported browser and here's the shortcut key: