Myntra.com — refund not credited by bank

Address: Mandir Marg, 246001

My a/c no is [protected]. The below mentioned is recieved from myntra. Kindly resolve my problem.

Thank you for contacting myntra
We would like to inform you that your refund is successfully processed into your source account. For your reference we have listed out bank reference number/s.
As we see, refund has been processed on 5/12/2019, it was reflected to your account

Amount - rs. - 311- bank reference number is - "[protected]

For any further disputes, i would request you to kindly contact your bank customer support team. The contact details of the bank support team will be printed on the flip side of the debit/credit card issued.