My two boys are in dcf custody?

My boys are in dcf custody and I have a visit with them once a week for one hour on Thursdays. Both my boys were placed in a star program and both my boys were together and now they removed my oldest son and hes now in a foster home while my other son is still at the program so now both my boys are split up. well yesterday was a visit for me and the boys i showed up early and later a guy that works at the program shows up with my youngest son who is 8 and I asked where is ur brother he said they took I said who he said the foster parents i was like what and the parent aide came the one does the supervised visit and she was like where is the other boy and noone knew dcf didnt call and let anyone know anything. So i didnt get to see my other son yesterday and now have to wait til next thurs. and I have to go to court next thurs. for a motion hearing. can I use this in court? Thanks and sorry so long