Refusal to return daughter per court order
We have a court order that my daughter is to visit w/ her father 4 weeks during summer in Indiana. He is order to provide in writing the schedule. He picked her up on June 7th (FLorida, where I live), and was scheduled to return her July 7th. 20 minutes after picking her up he sends me an email saying he will not return her until the 12th. I attempted to call him and he told me tuff tell it to the judge. What can I do? Do I have any rights to get her back on time? Or let the courts know he is going against the order?