Igor is right. Letter to her or her attorney which will be admissable later. Get paperwork from the doc, I'll bet he didn't even list him as dad. Three incidents and you staple it all together and file motion for contempt. Bring the motion to court so the judge can read it again at the time of hearing. She's trying to stick a knife in your back, don't expose yourself and push her to do the right thing, give her enough rope. All contact with her through email. If she emails you back you can use it in court. I can't beleive you still don't understand waht you're dealing with, you better start getting ready for court.