I’m not sure if they can go back that far and the first link below suggest 7 years is the maximum for reprints. Best to jump on the live chat on the second link and ask billing and accounts about that.
I'd agree it fairly unlikely 15 year old records would be available now. Back then it would have all been paper records too.
Can only suggest you contact Billing and see where they can lead you.
I'm really not sure about this one either.
The legacy billing platform is still used. It might be possible, best to speak to the guys in billing over Live Chat.