@dyslexia,
On the other hand, dys, Sara probably was brainwashed by your ex-wife as
it is so often done during divorce proceedings and afterward. She might
have told her that you're a dead beat dad who never paid child support or cared about her well being. It's very unfortunate when either mother or father kidnap their children and rob them of a relationship with the other parent.
Don't dismiss your daughter just because she hasn't contacted you. I think she should hear your side of the story too - via your aunt you could send her a letter. The ball is in her court then but at least you've tried to make contact.