This is complex. And I�m afraid, without understanding a bit more than you could convey here, you�re not going to receive the most informed answer.
As I see it, this does sound a bit like a test. I�m of two thoughts: Let it go on a bit and pay no mind to it. In time they will become tired of this pedantic behaviour and start to follow a more reasonable pattern. It could also be in the caller�s mind that they�re somehow demonstrating their determined interest in the child�s welfare in the hopes of making another approach to the courts.
In any event, if it were me, and this is the only way I can present this, I would wait a period, ensuring that I keep a log of the calls and times and if it persists, contact the solicitor who acted in the child�s interest, showing how this is becoming invasive rather than supportive of the child�s best interests.
What matters most is the child�s best interest. I�m sure the courts tried to take in to consideration everything before them prior to issuing a decision.
I wish you every success
Fr Bill