When a shipper selects your bid, an email notification is sent to you. At that point, the driver should call or email the shipper directly to work out pick-up and delivery details.
You are typically paid by the customer after the job is completed. You can request payment in the form of cash, credit card, paypal, check or any other medium you and the customer agree upon.
If there is any problem at all with payment, shippers and drivers can <contact CitizenShipper support> at anytime.