I guess we had your apartment some two years ago (family Reppin from Berlin).
Concerning your posting:
I guess Flora Apartment spent more money for heating, cleaning ... then they got in advance. Thats why they need some more money to pay all bills. Very uncomfortable but you will have to pay. Same as in Germany, deficits have to be equalized
PS: Is there a vacancy from 31st Jan 2009 to 7th Feb 2009? How much will it be? Please send a PM. Thanks in advance.