Do you know any of her family? I got my mum to speak to her mum and they organised things between them, thus keeping the nc intact as far as I am concerned and getting back my stuff.
I had contact with her mother on Christmas. She sent me some season's greetings and I responded. But her mother lives in another town. I exchanged some emails with the mother of my ex after the breakup, I told her to keep an eye on my uBPDex's children, because I thought, my ex is to busy with herself, her new job and her new relationship to take care of her children's needs. She answered, that she admits my worries about the children, but she thinks, that her daughter is a good mother and takes care of her children. The mother of my uBPDex is either an enabler or BPD herself. I'm not sure. My ex did not know her father - it was some guy, her mother dated when she was young, but there were so many - who cares?