Aamco Lieing about fixing my truck and constantly lieing about when they'll be done. Decatur , Georgia

I had my truck serviced with aamco the first time around late Jan. of 2012 for a transfer case problem which thry charge like $1,000. The job came with a 12month warranty and the truck started givining me the same problems after only a few months. Still under warranty I send it back to them at the end of June 2012 an,,d every since then I have been constantly lied to about them supposedly working on my truck. They constantly dragging me along with different date on when they will be finished, along with them constantly telling me there is nothing they can tell me about whats going on cause the guy I need to talk with isnt in the office. So they ask for my number everytime and tell me they'll give me a call back with an status update and never do. T