Indian Overseas Bank — Atm money debited but not get it and not credited.

My name is santhi.I am a customer of IOB, T.R.Pattinam, Karaikal.Puducherry state.I drop a money rs 10000 twice in HDFC atm ayya kutti palaya, pondy at 17/04/2021 7.10p.m.But, both time total amount rs20000 debited from my amount and i nod get money from atm.After some minutes rs 10000 only credited another rs10000 not credited.
This problems complaint to IOB, T.R.Pattinam branch manager at 19/14/21.But still i will not get my money.please do the needful as yearly as possible.