Amazon India — Refund for order Id :[protected] is not credited

Address:	Mumbai City, Maharashtra, 400091
Website:	www.amazon.in

Refund for order Id :[protected] is not credited. Amazon claims that refund was initiated from their end on 3rd December 2016. I cannot see the refund in my bank account summary till date.
I have had rounds talking to customer executives of amazon & my bank involved - Citibank. Amazon executives claim refund transaction was successful & provide me with a transaction Id. Citibank executives cannot find the transaction Id & keep requesting for ARN number. After many calls to Amazon, i understand that since the purchase was made through netbanking, ARN number is not involved. When the same is communicated to citibank, they say they cannot investigate the issue until they find an ARN no. I don't know where the refund is stuck...I have had my share of calls talking to customer care executives of both & the issue does not seem to be resolving since the past 2 weeks. I want my refund amount back as soon as possible. Whoever is responsible, Please take the initiative & process the refund.