Myntra.com — Wrong product received and money not refunded

I ordered a kurta on 29th September 2020 on Myntra but received wrong product and design. I immediately created a return request but they denied to pick it up saying it does not match the product they want to pick up so I filed a complaint on Myntra website but instead of resolving the issue they are saying to wait for 24 hrs from 2 weeks so they can solve the problem and give my money back. It is a mistake from there side but still they are being so unprofessional and not picking the product and giving my money back.