Easy to solve. Use a inbound payment account and transfer it to your operating account as soon as it clears. Pretty standard stuff.
I have had some invoices@xxxxx.com people destroy a relationship with a good broker in 2 seconds. I realize that most of the time the broker has very little if anything to do with me getting paid on time but man if your invoices/AP people can't even find the time to respond to emails on 45++ day out stuff then sorry for you but we can't make money together anymore.
Update: The blue star mafia coughed up. Mailed July 20 received July 27. They have been moved to the bottom of the list to haul for. I have other options for the same lanes.