Tail Light Switch problems of the 2009 Dodge Charger

In August of 2011 I hit a large piece of semi tire tread. I realized before we returned home to iowa that I had no tail lights. In January 2012 I took my car into the dealership where I purchased it to find out why the car had such a bad shiny and the tail lights were not working. The frame was bent from the tire,the transmission also t some damage and of course the car was seriously out of alignment. When the car was returned the tail lights were working. About a year later I was pulled over and given a warning because my tail lights were not working. I took the car back to the dealership because of the tail lights. Once again they worked when I picked it up and I didn't think about it again. Then recently I was pulled over again, no tail lights and a warning. I made an appointment with the dealership, took my car in(third time), lights and trunk were working properly. I decided to check my lights when I got home and guess what, no tail lights. I now drive with my flashers on since the last pullover. I am taking the car back on Thursday, December 18, 2014. This is try no. 4. I also found out with that my life time warranty on my car no longer existed. I had received a card to bring my car in to have it checked out. I called the dealership three times leaving a message each time which included my phone number but never received a call back. At this point I decided it must not be a big deal since no one was returning my calls. I don't believe the car saying anything about this affecting my warranty. I do feel fortunate that I don't have to drive my car a lot after sundown and that I have not been awareness in the dark. I was injured in 2001 and don't need any further injuries to make my pain levels worse than they are now. I saw a young girl on television tonight and is now paralyzed because someone hit in the rear end of her parents car.