Am i wrong for not delivering?

I had my truck posted on Load board. Got a call from broker with a load from San Frenando, CA to Orlando, FL. I confirmed that my truck was within an hour of pickup after receiving rate con and I would be able to make delivery IF the load paid well enough as I would most likely have to deadhead out of FL to keep moving . Broker offered $9,400 for the load. I asked for an advance after load is picked up and free quick pay once load is delivered. Broker could only do quick pay. I check load board for broker reviews, credit score and days to pay. No reviews, 30 days to pay with 90 something credit score. Broker asks me to head to pick up and we could sign broker carrier agreement after to avoid picking up the shipment late. I advise broker that I will not move my truck without a rate confirmation. After a little push back, broker agrees to send me rate con so I can pickup load on time.

I give shipper the info provided by broker, few minutes later shipper asks If I work for "not my trucking company" I respond no I work for "my trucking company" shipper asks for my CDL and broker info which i provide. Shipper states that the info is not matching. I call broker who says he will call his customer and fix situation. few minutes later broker calls me back and says everything has been cleared up and if they ask say that I work for "not my trucking company". Shipper gives me a door, I sign BOL head out.

Broker emails me asking for broker carrier agreement that I failed to sign and return, which i ignore. Broker emails asking for update on location, i respond with location and where I planned on stopping for the night with hopes that he will see that I'm making progress and will deliver early. Broker responds with Receivers hours which lets me know that arriving early would be pointless.

Next day receive a call from New Broker asking where I am with his load and do i work for "not my trucking company". I tell new broker that i'm on track to deliver on time i don't work for that company and i got rate con from Broker. New broker states that its his customer he brokered the load to not my trucking company for $6000. I call broker and get no response. I email broker and new broker stating that I will not deliver without getting paid in full. both shipper and receiver are closed at this time.

I call receiver the next morning and let them know whats going on. Receiver states that they have check on hand to pay new broker, that I should call new broker to work it out. Few minutes later new broker calls me back stating that receiver will not pay more and offers me $6000 to deliver I decline. I call receiver to get name to provide my attorney. Shipper states that he has already paid new broker $7000 for shipment load is refrigerated and time sensitive. He will not accept shipment if i try to deliver next week. New broker calls back offering $7000 to deliver which i again decline. New broker says he will call back. I have not heard from broker or new broker since. I'm waiting for shipper to open on monday. I've been told that i should have just accepted what was offered and cut my losses.

What else could I have done besides checking load board and fmcsa website?
I'm sure truckload of dairy products has to be worth more than $9400 plus two days storage.
What should i charge for holding? I want to charge $500 day layover

 

Maybe I should have stated that my authority is still under a year and Landstar stiffed me on my very first load. I'm really looking for good advice