Q: Family Sharing - transfer child to another account

i'm having trouble transferring my child from my old iCloud account.  I've recently set up a new account and i've added one child (new set up on iPod) and the child with an existing account will not transfer.  I've invited my child and i receive the email "allow child to leave and join a different family", but i cannot "view request'.  Any suggestions?  can i delete my old family sharing account?