Just had a 90 day on them. Left a couple of messages that went unanswered, finally got someone. I think he was GM. His first question was "was this your first load for us". Apparently, if they code something in their system wrong with a new carrier, payment is never triggered. (I want an accounting system like that).
Anyways, 7 days after I spoke to him, cheque arrived.
I don't know if I will try another load with them, but whoever this guy was, he made it happen.