I currently have two old accounts on my BNet that I will be using, and can buy a few more with balance. I'm trying to think if there's a proper or optimal way to set up the referring to make the most out of summons or anything else.

Let's go with A B C D E with A and B being my old accounts.

A needs to RaF C
B needs to RaF D
Now both old accounts are earning RaF credit.
Does it matter who refers E?

My only thing I can come up with is that A should not refer more than 1 new account because it has the most high level characters on it already. B is old but not much on it so that's not a concern with B.

If you'd like to add any other advice, stories, or what have you I'd love to hear it : )

Kevin