Lodha Group — Leakage and seepage

Lodha is not solving our complains, since last I am continuously mailing but they are not attending proper ways. They are just paste some liquid and enough.
But these are helping to solve our leakage. Our every year painting got damage and faded. But they are listening.
I am not understanding where to go the complain.we help..
my flat quality is so poor, they used material in flat are not good, every where leakage n seepage problems.
Please help