You can easily update your billing information from your Mailbutler Dashboard.
Update your billing information from Dashboard
1. Login to Mailbutler Dashboard -> go to Subscriptions
2. Here you will find all your past and active Mailbutler subscriptions. Scroll down to view the list of invoices, and the “Update payment information” button.
Update your information as needed. You can choose between paying with a Credit Card, PayPal, and Apple Pay.