We wish to know our rights to contact our grandchild who has been moved 700km away and mother has breached parenting

Customer: Hello. We wish to know our rights to contact our grandchild who has been moved 700km away and mother has breached parenting orders of nsw local court
JA: What steps have your grandchild and the mother taken? Has she filed any papers in New South Wales family court?
Customer: My young son and his partner had a child and they lived with us on and off for the first 2 years of our granddaughter's life. My son and his partner split. They both signed Parenting Orders and Consent Orders with my son having rights to see his daughter every second weekend, half of the school holidays etc. As our son lives with us, we all were able to see our granddaughter and even though there were tense times, we always saw our granddaughter more than the scheduled time.The daughter in law had another partner, with whom she has a son. He managed to get hold of his son when she breached the Parenting Orders that he had with her and now I think because she had moved, and has lost permanent custody of her son, she has cut off all communication for us with our granddaughter and similarly with our son.
JA: Have they talked to a lawyer about this yet?
Customer: My son has. his ex partner makes her own rules and tells the lawyers that she has moved for her health and to be near family etc.. I think all of the to-ing and fro-ing with the lawyer and the tormenting broken promises from his ex are too much for my son. I want to know our rights.
JA: Is there anything else the Lawyer should know before I connect you? Rest assured that they'll be able to help you.
Customer: Just that this is about me and my husband wanting to know if we have rights to take her to Court and have access to our granddaughter. At the moment we have been cutoff completely for the past 6 and one half months.