Yes, I think that you are indeed entitled to see a bill for which you are legally responsible to pay.  Even if there is no specific "law" that you can point to as being supportive pf your right, it would seem to be against public policy to rule otherwise i the matter would be brought before the court and a judge.  So I would request to see an accounting of the matter from the landlord or management company.  Do so in writing and send it by certified mail return receipt requested just so that you have a record of the transaction.  Keep on top of it. Do not let them off the hook either.  Good luck.