Myntra.com — Refund not yet received by myntra into my sbi account

I have ordered a product with order id 115484043448989863201 and I wasn't able to recieve it so it was returned to origin. The refund of 490 rs was initiated on 26 th October 2020 and its around 2 months and not yet received refund. Myntra has given a bank reference no and through that I have contacted the bank and they are not able to track the transaction through reference number.