My ex has moved out and currently has the children. Contact is limited between us at the moment. Our son is very settled in his school and had a good year there. I am terrified of my ex trying to change the school without my consent. I am assuming it's difficult and needs both of our approval? I have emailed the school to warn already and the council. to state I wouldn't give approval and to notify me. We both have PR and have an ongoing court case related to custody. School restarts in a few weeks. Any advice?