I have had the worst experience with Mahindra Roxo...

I have had the worst experience with Mahindra Roxor. The speedo on my Roxor stopped working while it was still under factory warranty the dealer sent in my speedometer and Mahindra was supposed to repair it and return it to the dealer. It s been nearly 4 months and I can t even talk to anyone at Mahindra there is a customer service website that I have emailed multiple times and I have not been contacted or emailed. All of the phone numbers that I can find online does not work or has an answering service that will take a message but no one will call you back, at this point I need to find a name for someone and an address so that I can sue them.