With regardsto the non-occupancy charges, as per bye lawys of the Co-op. Society. society cannt charge more than 10% of the monthly maintenance bill. 10% charges is exclusive of the property tax, water charges, insurance premium which is not a service given by the society.
Charging 1.5 times of the monthly maintenance is overcharging. you may write to the society to re-look your charges and rectify their mistakes.
Adv. Rohit Dalmia