Billdesk — Refund the money of failed transaction

Address:

Visakhapatnam, Andhra Pradesh

SIR,
I made online fee payment for "DNB-CET EXAM JAN 2015 SESSION" for registration of Rs.4500/- through my SBI INTERNET BANKING on 10.09.2014. My transaction was failed with error "Reasons: your transaction was not successful sorry!We are unable to process your transaction. But the payment is done successfully and the amount is debited from my account.i even did not have the proof.So what should I do now? .please reply me at my e-mail mentioned below.

Thanking you
Yours faithfully,
GULLIPALLI GANESH

[protected]@gmail.com