I have an upcoming court date of 31st March 2016 as the first date of a parenting order application. My ex, in her infinite wisdom, has decided now that she's going to get our 5-year-old son's surname changed, to remove my surname and replace it with her's, because "you're his dad but you're not his family." After she text messaged me today requesting me to sign the forms, I said I would be willing to consider negotiating something after the visitation and parenting orders were completed in court. She said the name change is more important, and said she'll get his name changed with court approval. I didn't decline, but said I would be willing to negotiate it after the orders were done, and she said I'm being "childish", which is what she says when she doesn't instantly get what she wants. Now she has cracked it and blocked my number so I can't contact her anymore. My understanding of things is that to have the name of a child changed, there is the requirement of the signature of both parents listed on the birth certificate, unless there is special authorisation by the family court. Given that there is currently a parenting order application pending, how likely is it under Family Law that she can get his surname changed without my signature, and is there anything that I can do to force her to unblock my number, so I can still check on our son?