Boat — 2 months not recieved my repaired headphones

There was problem on call on mic with my boat rockers 400. They picked it up 2 months ago and still i have not received it back. Neither they reply mails nor they pick up calls. Also there is problem with their answering system on calls. No input is being accepted. This is the worst experience of my with any company and i will make sure no one buys a boat product in my network ever see nothing has been updated after 24th july also i want to upload the mail conversation in which i recieve no response.