Fraudulent withdrawal from ICICI bank ATM, no support

On 7th October 2019, I received a msg from ICICI bank that I made a withdrawal of Rs 5000. I complained to icici customer care against this message & received complain number.  The issue not resolved & again got fresh request number,  ATM clip request on 11th October from ICICI executive.  In response to above fresh request the nearest ICICi branch manager & myself checked the full cctv footage & confirmed that it was ATM machine  fault,I didn’t receive the money. Now I received a mail from ICICI care.
” We would like to inform you that as per revert received from team concern that ATM withdraw transaction on  Oct7 2019 of amount Rs 5000 was successful & unable to provide the reversal of the said amount.
Customer service manager
ICICI Bank Ltd”
Thus without checking the cctv footage they only go through  ATM machine  messages ,declined my claim.  I want my money back which I didn’t withdraw.