Jaquar — Leakage issue

Address:

B 404 Avani homes near bapasitaram chowk nava naroda Ahmedabad Gujarat

Jaquar person comming for repair but not solving issues completely rather he is doing such things so that we will be forced to call him again and again.
asking money more that what is set by company.
now our two bathrooms are having problem of flush, mixer tap and mixer shower.
Also many times send mail and call no one person given reply..