Canara Bank — refund not received from myntra

I have ordered a kurta from myntra worth 1789 rupees. But i returned it. And the refund has been sent by myntra. But the amount is not reflected in my account. I have contacted the canara bank customer care. They said to wait one month. The amount still not appeared in my account in one month. So i again contacted them. They said to contact my home branch. They also could not help.
Myntra has sent me a reference number for the refund which is[protected].