HDB Financial Services — Emi deducted twice from my account

Hi,
My first emi date is 2nd july 2023. When i check through hdb application it has mentioned auto debit. But it didnt deduct amount from my account and so without getting delay i have paid my first installment through paytm using my loan number. But again my amount got deducted on 3rd july 2023. Kindly do the refund which was paid on 2nd july. Please do check and reply, i tried to contact many times but there is no response from your side. If i dont get response from your side then how will i trust this hdb for future purchases. Kindly do the needful.
Thank you.
Loan no. 35322341