ICICI Bank — Not refunded amount

Address:	500032
Website:	icicibank.com

I made a transaction of RS.17, 444 by paying Citi bank card bill on 6/3/17 by using icici net banking which was incorrect how ever that payment got reversed from Citi bank end on 14/3/17 but never reversed to my account. Attached are the screenshots of my icici bank statement and the other citi bank card statement where the payment is reversed. how ever i called several times to both the banks CITI bank says we have reverted the amount it is not our fault and ICICI bank says we did not received any money from CITI bank iam disgruntled by their service, i wanted to sue both companies for their improper response to customers. Please look into the details and take necessary action.
do the need full.