Freight forwarder assigned

The order has the "Freight forwarder assigned" status until the buyer starts the payment.

The following button is available for paying the order:

By clicking the "Bills list" button, a window for billing will open up:

As soon as the buyer starts paying the order, it changes the status to "Payment processing". 
After the bill is paid, the buyer can view the payment details:

To get more details about the payment process it is recommended to view the "Billing payment" section.