National Moving Group Inc SCAMMM!!!!! BROKER ALERT SUBCONTRACTOR ALERT FRAUD SCAMM Boca Raton Nationwide

The main issue that i had with this moving coordinator/shipping agent/broker is the estimate to the final price.  I called for an estimate and was given an estimate around the same price as other moving companies.  I went with this broker because of the assurances and confidence that i received from the customer service rep Thomas gave over the first couple of phone calls.  I learned later that only half of what he said was the honest truth.  Here are some examples of what he said vs what really happened.
1) Thomas was going to be my main contact throughout the move and I would be dealing with him throughout.
1a)  I called thomas several times after gave my binding estimate fee.  Almost every time I called with a concern about the move or the actual movers, he transferred me to someone else due to his lack of expertise or someone else was in charge of that part of the move.
on two occasions I called to hear from one of his co workers that he was sick or his car broke down.  both times it was just weird how the excuse was ready and given to me.
2) Called thomas with an updated list of my items and my estimate went up. Understandable, especially since this 90% accurate inventory update.  I say 90 because I tried to sell items in the last week or so.  Also he said, He over estimated on top of the items list I gave him
2a) When the movers arrived they quoted me $1000 more the then Thomas updated estimate.  This was based on a visual estimate.  I declined and asked to go through weighted scale as the NMG agent suggested I do because the estimate was so much different from Thomas's estimate.
I have yet to see a weight scale receipt but did not want to have my items held hostage.  I paid the new amount due to past reviews of people not getting their stuff at the new location.
I called NMG to seek resolution on the difference of the estimates and weight scale.  Their response is that they did nothing wrong, their system uses average weights and I just had added $1400 worth of weight that was unaccounted for.   I did add weight but the issue is that I was prepared to pay an extra 300-500 extra not $1400.  The department that handles the moves said they would pass my issue to a manager but that they would not do anything anyway.  I was asked what I wanted just to please me. No real intention of making things right.

Its my perception that the estimate they gave me over the phone was not as accurate as possible from their end.  Am I to assume that this company adds $1400 to all of their estimates?  and if its not the agents fault for that far of an inaccurate estimate, then the system they are using should be modified to consider increased weight of items.  All in all it was a very stressful experience and saddening how nice they were up front and how in helpful they were after they received their portion of the moving money.  
This was a cross country move and this broker used two moving companies to complete the transport.
Original estimate was $3100, final payment was about  $4500