HDFC Bank — Credit card autopay return fee (need refund as bill paid ontime)

I paid my hdfc credit card bill amount of rupees 6, 337 via netbanking on 04-apr-2022 10:46 AM, as I thought bill was not deducted via Auto Pay.
But in afternoon when I check my account & I got to know that amount of rs. 320 has been deducted from my savings account.
As per talked with my RM it is charge of autopay was initiated and due to non - availability of sufficient funds a payment
return fee will be levied to your card account.

Why should i pay the return fee as i already cleared the payment in my card.
This is unfair and not acceptable.
I want my amount back in my account.
Check my credit card bill payment history, i am paying my bills regularly ontime/auto pay.

My HDFC Netbanking User ID 26290170
Check attached image for transaction detail.