Hi Louee. My dh had to go through the Courts to get contact with his dd because his x wouldn't let him see her. She finished with him but still wanted to cut him out of her daughter's life. She'd already done it to the fathers of her other 2 children (and one since).
When he could no longer afford to pay for a solicitor he represented himself. He had to argue the case to have contact with his daughter, and how much, and ended up with every 3rd weekend and half of the school holidays.
I would have thought that your husband is in a strong position, as there is a Court Order in place and she's in breach of it. If it was my dh, I think he would write to his x to arrange a contact, and give her a deadline to reply to you by and say that if you don't hear you will take the matter further. If you don't hear get the application forms from the Court and apply for a hearing and go from there.
We used to write everything down, every phone call or contact, dates, times, what was said. We had abusive messages recorded by the police. The courts didn't take much notice of it all but it was helpful to prove certain points and when it came to writing Court Reports.
I can totally understand why you feel like crying. I didn't understand how she could do it to her child, and now I'm a mum myself I understand it even less especially when I see dh on the floor playing with dd. There are so many sad threads here about dads who just don't want to know, why, why, why then do some women want to stop good dads, who want to be there for their kids, being involved. I could cry too.