Myntra.com — money in myntra credit lost

Address: 560037

I had a myntra credit balance of rs 475 from a refund. My myntra credit now is rs 0 due to a fraudulent transcation. Somebody had hacked my myntra account and has done the shopping. When i complained to myntra about it, they informed they cannot refund because the product has been delivered and i need to raise a complaint in cyber cell. Myntra is not guiding me where to raise the complaint which website and how, their customer care executives do not have the know how of the same. Please guide me on this