Wrongful Termination

5yrs with T-Mobile, not one Written Warning, Not one Written PIP. A peer gets promoted to District Manager, while peers we did not "like" each other but we were professional and cordial. After 30 days of being in his District I was Written Up for not doing my job. He came back and wrote me up again a few weeks later stating I did not do what he asked? But he never visited during this time and I had documentation showing I did everything he asked. So he "found" other things, I.e. Labor was high, so I fixed that too! Had the most successful month (June) of the year! #4 in District month to date mid July! Did not see him for a month. Came in mid July and Terminated me stating I had not done what was asked. Even though I had 100% documentation and numbers to prove it...... Just goes to show, Great company's can have some vindictive Upper Managers! I had 16yr career in Wireless, 5 of those with T-mobile.... Get the wrong "boss".... And he manages me out in 4 months!!... Not a Leader!!..... Probably because I called him out on it 2 months ago... Hope Karma is real.... I will be fighting this, but in the meantime, I have another opportunity. Any advice on moving forward? It came as a shock, but I'm dealing...