Siddhakala Renewable Energy — 150 lpd / 100 lpd sunshot solar water heater

Address: Kolhapur, Maharashtra, 416209

I have purchased two solar water heaters 150 lpd and 100 lpd from siddhakala renewable energy systems by product name sunshot solar water. Both the products are found low grade quality and low grade material. Warranty 7 years. Raised complaint in company. No one responding. Waste of money and time. Fraud company. Distributor not responding. Third grade company employees. How to take action on this company please suggest. Thank you