Boult Audio — I have sent the earbuds for replacement but they have not been returned

In November, I sent my earbuds to Bolt Audio for a warranty claim request, after which I got a ticket and an address in Delhi to whom I had to send my damaged earbuds, so I sent them and 2 On 2 December, I got a confirmation from the company that the EWRs have been sent on lotteries but I haven't received a reply even after 2 months. I sent a lot of mails and they I also sent a lot of messages on WhatsApp, he keeps driving me crazy, always the reply comes that your problem will be solved very soon.