Thuc Anh Duong Ha

Is it counted as 1 new unit every time a customer starts a chat (within a certain period of time)? 

Do customers need to end the chat for calculation? 

What if the customer doesn't press end chat?

When I request to open chat simulation, it appear:

“Looks like your account is offline at the moment. Your visitors won't be able to chat with you when you are offline. Learn how you can change your status here.”

But when I clicked “here” above, it showed “This page doesn't exist. You may have mistyped the address or the page may have moved.”

How can I open chat simulation?