Am sorry to hear that pal, although you may have rights and you could fight and get your job back, the question you need to answer is, do you want to do this every working day, I assume 5 days a week where you will be constantly stress and worrying about the next block etc.. I will suggest you find a job that doesn't involve constantly making phone calls. I know is not fair and its not your fault but unfortunately we were born these way and some jobs won't suit us. It's like a short person wanting to play professional Basketball or volleyball.