Cathy,
To add, you can only have one club email and point of contact listed for the club.
If steel challenge is different when they create a match for them they can change the email point of contact. But it is going to default to the club information every time unless they clone the match.
As far as making this person an admin they first have to have a PractiScore account and you need to use that exact email that they use on their account to add them with.
D.J.