Jaquar — shower

Hi l am living is sushma elite cross zirakpur shampoo punjab. Here we have been living since one-year. All the bathroom fittings in this society or may our block is of jaquar. Since we have bought the house the shower of one of the bathroom does not work due to one of technical reason. And as we complain it to the society keepers they tell to contacts jaquar in the matter. So it is all. How can it be corrected. Help