How to add my child to family sharing without a apple device to invite
Ok so.. my child has Apple ID on his iPad. Still, he played around and accidentally left family sharing and I no longer have my iPhone (I broke it) so I've tried my Microsoft computer to add him back on and even this website to see if I can if I'm logged into my apple id. But nothing has worked I've also looked around these communities and can't find anything to help me.
So please help!
p.s All my apple devices are too old to use or are broken
Windows, Windows 10