So what you're saying is that technically speaking my character slots is actually 48/28, and I need to buy enough slots to bring it up to 48/48, so I can then delete the old toon to make a new one?

So as far as I'm aware, I know that per server I'm meant to have 28 character slots. However on Satele Shan I have 48/48 (I never bought additional slots). This is is because back before the last server merge I had maxed out character slots for each of the older servers. With that in mind, I wanted to redo one of my old low level Vanguards, but I'm not sure that if delete him, does it become 47/47 , or 47/48? I was hoping someone might happen to know before I go ahead and try to do it. Appreciated.