In the court filing, DeJean also said: 'Given the informal arrangements around the payment of the children’s expenses have not been regularly sustained by [Pitt] for over a year and a half, [Jolie] intends to file an RFO [request for a court order] for the establishment of a retroactive child support order.'
Since the former Hollywood couple's split two years ago, custody of their six children — Maddox, 16, Pax, 14, Zahara, 13, Shiloh, 12, and 10-year-old twins Vivienne and Knox — has been an ongoing issue.
Earlier this year, after the pair couldn't come to a private agreement so were forced to enter a custody agreement in court.
The court determined that the children 'are safe with their father' and that it is 'critical that each of them have a healthy and strong relationship' with both of their parents.
However, Maddox is essentially free to go with either parent because of his age.