Indian Railway Catering & Tourism Corporation [IRCTC] — money deducted without booking tickets by irctc

It is for your kind information that, i was tried to book railway ticket on 19/01/2018 from kollam to madurai by 56701 (Madurai passenger train) for four peoples. And when i booked my 600rs was deducted from my account but booking was not done due to some technical problem or something like that and they send me a message, in that they mentioned that your ticket booking was not done and the amount deducted from your account will be refunded. Till now the amount was not refunded to my account i don't know why you people are this much useless and i kindly request you to do the needful