Canara Bank — lost cheque in bank drop box

Address:

New Delhi, Delhi

I had deposited a cheque, amounting 40000rs for clearing on 09/10/2018.
Till date ie 12/10/2018, there is no news about clearance.. I went personally to the vikas puri branch to enquire,, but the concerned lady officer.. Mrs mamta did not help me in anyway.. She kept her doing own work and i kept on begging her to atleast tell me the status of my cheque..
She said there is backlog and i cannot help to trace ur cheque.. Despite my several requests,, she did not see in the computer system and ignored me in every way.. She said it's not her responsibility whether the cheque is lost or not.. This is not the first time i had to face harassment with the officer.. U can check with the staff and other customers.. U can check cctv footage for the authenticity of my complaint.. Please help me as i am a harassed customer, with no one to help me out
Thanks