Microfridge rental?

<p>Not your usual question:</p>

<p>My roommate moved out and left a microfridge. We live (lived) in Aron. I can't tell if it's rented or not--seems to me she said that it was purchased. Is there any mark by which one can tell? Is there a way I can call and ask the company? I've personally never rented one, but if anything that's not rental is left in the apartment after I move out, we both are charged money. She's not easily contacted at the moment.</p>