Myntra.com — refund is not credited in myntra credit wallet

I have cancelled my order which was paid through myntra credit, they have mentioned that myntra credit is instant refund but the amount is not yet refunded and when i checked with the customer service they asked to wait 48 hours and even after deadline got completed refund is not yet done & when i checked again with the customer care (Himanshi singh) they are asking to wait 48 hours more and my question to myntra is if you need more than 48 hours why are you calling it as instant refund service.

Still i didnt get any refund and i demand answer for this service
Order no :[protected]-1225901