1. society is charging maintenance on quarterly basis
2. that too in advance and not in arrears
3. so say for the quarter Jan - March, the maintenance bill will be raised in the last week of Dec and the bill has to be paid on or before the commencement of the quarter Jan - March
4. lets assume the due date for payment for quarter Jan - March is 1st January
5. let us assume that the bill is not cleared on 1st January and is sought to be paid on 7th January
6. so if that is the case then the society can charge penalty only for the number of days for which the payment though due was not made i.e. society can levy penalty for the period 2nd January to 7 th January i.e.levy a penalty proportionately for 6 days delay in clearing maintenance bill
7. thus the penalty levied in your case for every week is wrong. That is, there could be some days in the week comprised in default period for which no penalty could have been payable as the maintenance would have been cleared prior to expiry of that week. or say in the beginning of the week. So levying penalty for the rest of the days of that week when the payment is already made, say on the first day of that week, is wrong. Levy of penalty always has to be on a proportionate basis
8. you are liable to pay penalty on pro-rata basis only for the number of days for which the payment has been delayed