Replying to Lawyers Opinion Needed

So I am almost 100% positive I have a valid wrongful termination case on my hands. I used to work at a disclosed ski shop as a ski tech beginning last winter about December 1. I worked until about June in which I was put off my seasonal work shift and placed to 0 hours until the beginning of next season. I came into work about two months back to get my more hours put on with the starting of the winter season and I was informed that I had "quit." Now for some back story I have a twin brother, who worked with me at this disclosed shop. He decided he wanted to move to Mt. Hood, Oregon for the winter and went into aforementioned store to inform management he would be leaving in two weeks. Apparently in the eyes of the management staff where my twin brother goes I go, and they filed my paperwork FOR me, as well as I believe signing my name and never informed me of employment termination. Now my question is do i have a case for lawsuit against my previous employer? By the way this company is huge, estimated net worth hovering around 5 billion.