Scam or fraud: Hdfc Bank — debit card atm withdrwal failed but amount deducted

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Complaint Details:

I am an HDFC Bank customer.
I once tried to withdraw money from an ICICI Bank ATM, which failed and still amount was withdrawn from my account.

When complaint filed, HDFC officials asked me to provide proof and I told them to provide me the CCTV footage.
Now the CCTV footage is awaited since then. Its been 7 months now, but still awaited.

Can anyone guide me what to do in this situation.