Meesho Online Shopping Com - Amout not refunded

I ordered from meesho app on **.**.**** a suit and i received it on **.**.**** after received a product its quality was not so good that's why I returned it and it get picked up by **.**.**** after ** to ** I didn't receive refund money in my account as I request so many time regarding this to there customer care to refund my money in my account but they say we didn't receive your product even the courier guy has taken the product from me.
Sir it ** of October still I didn't received my amount.
I got tried of keep calling them but they didn't listen to my query.
My complaint number they have is ********.
Please do something sir.
Regards
Monita