Koovs.com / Marble E-Retail — Refund not received after returning.

Its been a month if I have returned my product on 15th April, but not received the refund. And already given my bank details on 27 April. Whenever I am giving mail, reply is coming like - "your refund is in process, we have escalated the request to our concerned team, waiting for confirmation, etc" . This is so much delay in processing a simple transfer to a bank a/c.