Billdesk — Transaction failed but the amount has been deducted from bank account

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Dear sir,
Sir this is Satyarth Ranjan. On 18th July 2022, at 05:57 pm i had paid 1000 Rupees using the "Unified Payment Interface" on the Sawyam Neptel website to register for a course called "Discrete Mathematics, " but I was unable to register and the money was removed from my bank account and it's still showing register yourself.
Please offer me with a refund; it would be quite helpful. I will submit proof below, and once again, I implore that you take proper action against it.
Thank you very much.