Jaquar — toilet flush valve not operating

Address:

400708

Toilet flush valve not operating properly. Flush knob can't close. Water flushing continually. Conceal flush valve installed five years ago from few days ago knob was not working properly. Two days before suddenly spring operation stopped and water flowing continually in water closet. Due to that main valve of water supply to building closed by society. Now there is problem of water supply. It is kind request to needful as early as possible to resolve the problem.