Citibank — Imposing unauthorized transaction my account

Address:	Mumbai City, Maharashtra, 400051
Website:	www.online.citibank.co.in

Dear sir/madam,

Please provide me justice.

Since february month i have been tortured by citybanks representative about the some unauthorized amount that has done by someone else due to week citybank security. I came to know that somebody had done the transaction with my citybank card when i checked the citybank monthly account statement of feb 16 at that time only i informed that i have not done that transaction so please revers the charges. At that moment i blocked that card and they issued new card. This transaction was done with amazon some emi transaction, they reversed that transaction for time being saying we will investigate further and we will come back after investigation. On 11. June 16 they got the result of investigation. As per the investigation some mr. Arjun has done the transaction with my card and they have attached details of amazon order receipt. Later i emailed that attachment to amazon seller to confirm whether that transaction was done by me. After few days of follow up i got reply from amazon that this was not done by account or by me. I mailed that confirmation to citybank however they just refusing that fact and forcing me to pay the bills. (Please refer all attached communication)
Below are the summary of fraudulent transaction.

Date of transaction as per citybank - 31 jan 16 (As per statement)
Amount - 11640.26 (In 6 emi)
Dispute raised date - in month of feb and it was done by phone.
First citybank email as resolution - june 11. They submitted amazon transaction document (Attached)
First reply from me on that email - 13 june - stating not valid proof and requested them to believe i have not that transaction.
Citybank reply - 15 june - they informed they will not investigate further as per them this investigation is final.
Reply from me - june 15 - stating i will check with amazon.
Email to city - on june 17 - forwarded seller email where they confirmed this transaction was not by me.
Reply from city - on july 19 - after a month they replied that i have to pay the bill with no basis. (All files are attached in 1 pdf)