Citibank
Fault debit for a declined transaction

I have debited Rs.20000/- on the 1st of aug from my Citibank acct through the Andhra Bank ATM (kapra).

I have made first transaction for Rs.4000/- at 12.28 pm. I took that amount. Then the second transaction for another Rs.4000/- at 12.30. but there was no cash in the ATM and the transaction got declined twice.

Again I went to ECIL Andhra Bank ATM and I have with drawn Rs.16000/. at 12.50 p.m. I took that amount.

when I checked with my balance after first transaction It was Rs.22744.41/-

and after debiting Rs.16000/- my balance came down to Rs.2744.41/-

I don’t understand about the remaining Rs.4000/- as how it got debited for a declined transaction?

i want my amount debited back to my citibank acct for Rs.4000