We hauled a load for TQL. While in transit, we had a mechanical failure that we had to repair to be safe. While our truck was getting repaired, TQL called and wanted to cross dock the load. After our conversation and that our truck would be repaired in a few hours they thretened that by us not cross docking, we were holding the load hostage. Well I am very versed in transportation law and had to educate the broker on who actually owned that load in the eyes of the law... the carrier does. Anyway, long story short as we did a lot of business with them and boasted a 99% on time delivery with them we were in the top of their preferred carriers. Upon agreeing to cross dock, I made it clear I wanted to be certain I was paid for my time transporting the load the distance we did and the broker issued us a new rate confirmation. Several weeks have passed and we recieved a letter stating that we owed $40.00 additional for the cost to TQL for cross docking the load and what they paid to the other carrier to complete the load and that our second rate confirmation was null and void. Mind you that by the time the load left the cross dock, my truck was successfully repaired and could have completed the load. Now TQL wants us to sign a paper releasing our rights to that load and pay them $40.00 additional to work with them again. Needless to say I cannot get a return call from anyone who is capable and able to do a thing at TQL and their Rate confirmations are not worth the paper they are wrote on. Keep in mind TQL is a broker only and they do not own any trucks able to complete this line of work, as it stands they need carriers more than carriers need them.