Microtek Inverter — inverter not working, complaint registered. no response

Address:	Thane, Maharashtra
Website:	www.microtekdirect.com/service-request

Inverter is not working. Just called the toll free number mentioned in the website. The person took the phone and scolded me saying that you reside in Maharashtra and calling at delhi for complaint. Given an pune number to register complaint. Tried 2 days and nobody picked the phone. Registerd a complaint through a dealer.
Its almost a week the complaint is registered and inverter is not working for more tha 10 days.No response. Being monsoon season, there are frequent power cuts. It is highly difficult to manage kids at night if power is not there.