United Bank Of India [UBI] — atm card transaction

Address:

Kolkata, West Bengal, 700061

I am a UBI ATM card holder, I used that card on 18.01.2020 at SBI Bakultala ATM, at 21:04:49. The transaction was not completed as the link failure happened, and the "Offline" message was shown on the screen, and no fund was disbursed, and I was waited at that counter for 3 to 4 minutes but nothing happened at that time. Afterwards I have received a message from UBI that my account is debited by such amount which I required to withdraw, however the transaction was not completed at that day due to link failure as I stated earlier. Till now no refund is made by the bank. I visited that ATM and talked to the security personnel over there and he suggested me to speak to the respective branch where I maintain my account and told me that it happens some time but the money is refundable. Hence my humble request to you to kindly look into the matter and help me out from such situation.