Myntra.com — no refund from long time

I did shopping from myntra on dated 21 june 2019 for amount of 7500 rs which is not refunded from myntra as product is returned from my side. They said that they have refunded in my account bt amount is not updated in my account and they are blaming to bank. Myntra is giving no proof that they have refund my amount but they didn't actually they are making fool to us... And big fraud.