AmeriCredit / They lost the title to my car

I paid my car off in Feb. 2008. I was never late with a payment nor have I ever had any previous dealings with AmieriCredit. I have yet to receive the title to my car, a refund check, or a "Gee, I'm sorry for the inconvenience". On the contrary, they act as if it is my fault. They keep telling the same thing over and over, "The title was mailed out...» The irony is AmeriCredit never missed sending me a monthly statement, showing how much I owed them. Now, I am just another annoyance that they have been putting off for nearly three months.