Alright, so I'm not sure about something to do with the starter pack, so here's the situation...
I previously played with a knight the same name as this one, but it was hacked, the character was deleted, and a new one (noob form with the same name) was made.
I had purchased a starter pack before my account was hacked...
Can I purchase one now?
Note: for some reason, this character has the same achievements as my previous deleted character... Dunno if that supposed to happen...
Well, you can try, without confirming it.
Anyways, packs are available once PER ACCOUNT, not characters. If you're using the same ACCOUNT then obviosuly no.
http://wiki.spiralknights.com/Starter_Pack