Onida DVD Player
Dvd not functioning properly

I bought a onida DVD two month before but dvds lens not functioning. I complained to onida customer care "customer relation Center" in mumbai. Then technician came and told that the lens is not functioning, so we will replace. For the past one month they told " we have no stock" so i want to mail the complaint, but there is no mail address. They have the branches all over the india, but there is no mail ID to customer care.