American Moving They held my belongings hostage until I paid their overpriced bill Internet

In August of 2010 American Moving company was supposed to come to my home in Manchester, NH.  They called and stated that their truck broke down and that it was going to take a few days to fix.  I couldn't wait so I got in the car and drove out to Colorado.  My father went to my apartment when American Moving showed up.  They showed up in two Uhaul trucks because apparently their truck was not fixed yet.

My father told me they pulled both trucks up to the stairs and load my stuff into it.  When they were almost near my condo in Charleston a woman from the company called me and told me how much the bill was going to be.  She gave me a price that was $600 more then what I was quoted.  She said it was because they couldn't get their truck within 75 feet of my door.  I told her that they had used Uhaul trucks and she stated that if they had used their regular truck then they wouldn't have been able to get within 75 feet of the door.  This is absolutely a lie because when I moved into the apartment the company I hired pulled their regular truck right up to the door.  Her logic made no sense to me.  I told her I wouldn't pay that amount and she said they wouldn't unload my stuff until I paid her.  I didn't know it was illegal for them to hold my stuff until I paid.  This was almost two years ago so I'm not sure if I can't still get thing from them but I want to help stop them from doing this to other people.