Basically, my 9 month old granddaughter's father has never seen her, has in fact denied she is his on more than one occasion. The other day he got in contact with my dd through fb, asking to see them. All fine, we wanted to keep it amicable, so suggested he visit her for an hour, so they could work out what to do. He asked for a picture of dgd, which was duly sent, then he messaged back, saying some nasty stuff, and again denying she is his. We screenshot these messages, btw, although I don't know why, it seemed the right thing to do. Today he tried to add us both on fb, which we both cancelled, I see no reason for us to be manipulated by him, which he has form for in the past.
Having got through all that background, what do we do next? Wait for him to get in contact and tell him to go through the court system? Try and do it all ourselves on an informal basis?
We have no idea, and really do need some advice. TIA