Dlf — No Communication regarding payments

Hi,

We are proud owners of a plot in DLF Garden City, Sector -91&92. Unfortunately DLF has not send any communication via email or post informing about pending dues to be paid.
Even to receive receipt for next maintenance payment, one has to call and ask saying - send us the bill for payment.
Mobile numbers and email IDs are registered with the org and yet no communication has ever been received.
Whereas DLF is quick to add "Previous Balance" due with INTEREST in next Quarter BILL.
This is unprofessional. Such a big organization and this shoddy behaviour is unacceptable and unjust.