Job Hiring Discrimination Question - Do I Have A Case?

My name is Josh. I used to live in Illinois. I moved to Wheeler, Wisconsin in September, and to Apple Valley, Minnesota in January to live with my Fiance. It took me 4 and a half months to find work, when I came across a medically challenged customer transport company. I went through a week and a half of interviewing and preparation for the job and I started training on the 22nd of February. I had had previous courier experience, taxi driving experience, and towing experience, plus other delivery experience. Each of the people that I had met for interviews and had talked to within the company, knew I was from a different state. The main people were telling me I was doing well, the trainers were telling me and the bosses were telling me that I was doing well; that I was learning quickly. I was being told that I would have a company van to drive and begin working on my own by the 25th of this month. This morning (the morning of the 24th I was told that my trainer was not picking me up as usual. I called the office and was told by one of the receptionists that the Driver Boss, did not know that I had just moved from another state, and for that reason had decided I would not be able to find my way around the areas that they drive in because (even though I had experience using map books, and I own a gps - which is what all the drivers in the company use anyway to find their way around). Now, during my interview process, I had already told him where I had lived before. Not only that, but his sister, his son, and his niece (all who work at the company) knew I had just moved to Minnesota. I spoke to my two trainers and both of them told me that the Driver Boss had called them the night before asking how I had been doing, and both of them told me, that they had told him I was doing very well in the training, that I was following and finding directions very well, and had picked up on all the procedures faster than others they had trained. I tried many times today to get a hold of the Driver Boss, speaking to everyone but him, but every timeI was given the run around. I have been told by my trainers on numerous occasions now that they themselves, as well as many other drivers lived out of state before coming to Minnesota and knew nothing about driving around and finding their way around until they started working the job and bought GPS's to help them. I was also told that each of them, including recently new drivers had had trouble finding their way, calling the dispatcher many times to ask directions, and I have not had to do that at all during training, nor would I, as I am an excellent reader of maps, I have a very good direction sense, I have a map book, and I have a GPS. I have not been given any good reason to have been let go without being given even one day's chance to prove myself on the road alone (as every other driver has gotten). The only think I can think of is that I have longer hair, which (in the company's employee handbook IS ALLOWED, as long as it is pulled back, which mine was). I believe I am being discriminated against in this case and wish to know what I can do. Please help me. This job was to be my livelihood, and my fiance and I could lose our place to live, our vehicle, and more if I don't have this job. Please, tell me if I have a case at all, and if there is anything that can be done. Honestly, all I truly want is my job and my chance to prove myself at said job, but if they are not willing to give me that, then I'd like to run them through the ringer for discrimination and get some sort of compensation for the amount of money that I would have been able to get in the long run from having the position. I need someone that will tell me if I have a case and someone that will only charge me if we win in court.