I moved out of my exs home 1 year ago with our 2 children. Me and the ex were able to communicate and reschedule our weekends if needed (it easy agreed that he has the children every other weekend) after 2 months of us moving out he has blocked my number and does not allow the children to talk to me when he is with them (its only 4 days a month so thats ok) his mum was our middle person, our go between but now shes not responding to me. He got himself a solicitor, I have been in contact with the solicitor previously but now they've stopped responding as well. He messaged me the beginning of the year dictating when he was having the children in the holidays and recently took them 'on holiday abroad' so I was told, I signed for them to go. I was only allowed to communicate with the children 2 days a week, 10 minutes max at the time. I then found out that apparently they didn't go abroad so I dont know where my children went.I know i need to get a solicitor and a court order in place to stop him dictating but I can't afford one.He has declied mediation, he will not entertain emails, notes or the parenting apps on any way! Do I still let my children visit their dad when there's absolutely no communication or middle person?