Billing
Here you can see Billing Overview and Payment History.
Billing Overview
Here you can see what your speaker plan is. You can also upgrade it here by clicking "Upgrade to get more features".
Choose the plan you are interested in and provide your credit card details. The appropriate amount will be charged every month.
To find out more about speaker plans check Eventil for Speakers.
Payment History
In this part you can see your payments for tickets bought on Eventil.