Hey bro. never rush to pay that amount. if the apartment company haven't send your case to collection, then talk to the apartment company or manager or concerd department. even apartment company should have collection department. and in this case tell them to negotiate the amount that they mentioned in the bill.. Make sure that they feel like u will not be give money so easily. Try to negotiate to the end. and moreover mention them that u are student and have no job at all and a foreign and came here temporarily and they will be scare that if u leave this country they can't collect their money. but unfortunately this kind of case has to be settled down any way coz this might [Disallowed String for - bad word] your credit till 7 yrs. and credit score will go real down. and if the apartment company had send the case to collection company then talk to the collection company and tell them the same thing that u are a student and have no job and a temporarily came to this country and negotiated till the lowest price, and they obviously negotiate the price

But guys make sure that its always better to settle down the case paying low amount of money and don't let the case go longer than 30 day , coz ur credit history gona start getting bad and if it is 60 days its worse and if 90 day extreme worse and if the case extend more that 120 days, your credit history will show KD sign which refers to Key Degotary something like that which stands for filing as an bankruptcy.  filing as a KD, bankruptcy is real worse case and will [Disallowed String for - bad word] ur credit till 7 yrs and ur credit score will fall  by 100 to 150.
so always try to settle down the case by negotiating the amount.