Our DD who has serious MH problems and is divorced has stopped communicating with us and all family members - we don't know why. We haven't been able to see our DGD who we were very close to for 6m. We are worried about the child ( Yr3)as she has been prevented from seeing her dad to and she is on the autism spectrum - high functioning.We still text, message ourDD and send letters and small gifts and books to DGD but don't know if she gets them. DGD must find "losing' all her relatives including her EOW dad ( who she hasn't seen for 12m)both upsetting and confusing. We don't know what our DD has told her. Dad is trying to get back access but won't go to court & for us to have to apply via court would be awful for us and DD and it's likely we'd just get phone calls etc rather than being able to see DGD regularly. Dd has cut off contact before with her ex and her family and can go 3/4 years NC with her own family. Dad is caring & there are no issues. Family have provided DD with substantial financial , social and emotional support and did a lot of childcare especially when DGD was a baby. None of us interfere in how she raises her child & we try to be supportive. Until recently Children's Services were involved and DGD had SW but they now say case closed. We are worried about the impact of family loss on DGD's MH and fear for her future. DD has BPD, Bipolar,Narcissism and is very controlling..Any advice on what we can do would be appreciated as the upset/stress has made both of us ill?