I've just been through something similar here at work.
I work in a small unit in a very large organisation, and just moved from one office to a different one with different staff. The 'senior'* person here hasn't worked here long, and brings with him a history of 'making do'. So the staff have been buying their own supplies, including basics like printer paper, tea, coffee, milk etc. The only person with delegation to order supplies is our useless manager, who we may not see for weeks at a time.
When I found out what was going on, I was actually appalled. I ended up calling the Supply department, got an order book and catalogue, and sent an email to the manager - cc'ed to a few other folk - citing the circumstances and what I'd done. After a bit of argy-bargy we now have the capacity to order what we need (it's not like we're going nuts - a box of paper, a pack of pens and some note books and staples...)
* He's the useless manager's golden child, is the same level as me, although I have seniority in time served. So he's the one that gets to play at being in charge. Good luck to him, I reckon, but I do wish he'd listen when he's told things he doesn't know.