Held my truck up at a delivery site for over 12 ho...

Held my truck up at a delivery site for over 12 hours with no help. Reason we were late was due to shipper loading too long. Broker basically did nothing to help he was "Waiting on the customer" For 12hours?? After we delivered this load, he blocked my number, wont answer my emails, when calling the company line I give them my load # and they then hang up the line. Never working with them again. I rather dead head 100 miles that deal with Lucas again. Be careful, book at your own risk.