Jaquar — Problem is not resolving due after registration

I have installed all bathroom fittings of jaquar. now there was a problem in flush valve. I have lodged complaint on 28/02/2023. Mechanic had visited my place. He cleaned the flush valve and I gave him satisfaction code. But after he left us I found some water is flowing continuously. I asked the mechanic he said he will do tomorrow. But he didn't visit. I again lodged complaint on 01/03/2023. He again visited my home. But he didn't solve the problem. and I didn't give hime satisfaction code.
But my complaint close without solving the issue. I again and again contacted customer care. And they always said that area coordinator will visit. But till today no one is visited. Please help.
Also scratches left on flush valve by mechanic. My Complaint no is 00278603