Pantaloons Fashion & Retail — Refund not made from pantaloons

It's very sad and disappointing to say that due to size issue, I returned an item on 26 dec2020, order number 4067238.since then I've been continuously calling customer service but it's been a month the refund has not been made from you.
A trustworthy brand(the customers used to think) pantaloons has lost many trusts of the customers including me.Waiting for my return since last month and getting a careless and irresponsible reply from your side. I need to lodge a legal complaint against you so that you won't befool the honest customers.
A very disappointing experience with pantaloons 😡😡