First and most important thing is that preserve your all photos, letters. keep one copy extra with you and original in safe custody somewhere else. you have to show them in court. when it comes to court, there is no hide and seek business. They will try to get all these evidences by some of your common friends or relatives. don’t trust anybody and don’t give to them including to your parents also. The documents are precious for you, and they only will bring you out of this misery.
you done a good job by keeping them..