Jaguar — Toilet push flush button not working

I am staying in just newly constructed building nisarg greens in ambernath east dist thane, my Flush push button is not functioning properly in my Common bedroom toilet. Kindly rectify since it is as good as new. Also the jaquar make commodes cover got loosen. Kindly rectify. Regards, ranbir singh flat no 1002, bldg no Nisarg greens, ambernath east, dist thane