HELP FILE

Your Grasshopper bill is automatically paid each billing cycle using the credit card on file in your account settings, so you do not need to log in and manually pay your invoices each time. You can change your billing information at anytime by logging in to the web portal. 

Note: You cannot change your billing information, contact information, pay bills, or download invoices in the mobile app. 

Related

Where can I access my invoices?

How do I update my billing and contact information?

When will I be billed?