Axis Bank — transaction failed but money debited from my axis bank account

Address:	Kanshi Ram Nagar, Uttar Pradesh
Website:	www.axisbank.com

I was paying 20000 inr for my upsee counseling seat acceptance fees on 05/07/2018 and i have filled all details and otp too as i was paying the amount from my debit card via online banking but due to any reason (I don't know what happened) transaction failed but i got message of debit of money from my axis bank account, without any successful transaction. Please! Refund my money back
I think it's bank fault that when transaction got failed then how can bank debit amount from my account.
I called my banks branch manager too but he said it's all online i can't do anything here and cut my phone.
And i want a receipt or any proof too.
Please help!