Myntra.com — Debited twice for the same order no.[protected]-6179203

Address:	11085
Website:	Myntra.com

I ordered three items worth 1437.79 from myntra on 21 december 2016 online.
after several attempts to pay online only once there was confirmation about the amount payment. but it is showing that the amount has been debited twice from my canara bank account. the photographs have been attached. kindly help out as they are not refunding.
after cancellation of order they are only refunding 1016. but the total amount debited is 2874.
so whole of it should be refunded.