Myntra.com — Not get my money back into my account

Address:	Dhanbad, Jharkhand, 826004
Website:	www.myntra.com

I have order for a bag on 29/05/2016 and got on 31/05/2016 but get wrong item then i return the bag on next day but till now i did not get my money back

I did cash payment through my debit card, i was opting for cash on delivery but did not, it was my first online purchase and does not feel good to get a bad response from such a reputed company.
I am not sure that i would purchase again from the company..