State Bank Of India [SBI] — Aiims mbbs 2016 fees payment

Website:

merchant.onlinesbi.com/merchant/merchantprelogin.htm

I was making a debit card payment of Rs.1015/- for my AIIMS 2016 form. After completing the whole procedure it showed : "Due to technical problems we need to close this session.We regret the inconvenience."
But right after the above error, I got the message on my mobile showing that the money has been debited from my account.
And the AIIMS page shows that the payment is still pending. What should I do now??