Cheated me. Get my money back or my product.

Location/place: delhi

Name of company/service: Timtara

I have purchased 2 headphones from timtara on 31st may through my citibank net banking debit card.
They promised to deliver the product within 20 days. But i didn’t get my product as yet. I have been trying their customer support number which is out of service.
My transaction no is 10116837. I feel cheated now. This is really very bad. I want my product or my money back as soon as possible. My phone no is 9873666666