Indian Railway Catering & Tourism Corporation [IRCTC] — pnr [protected] : refund required due to bug in the irctc software for booking double tatkal ticket dispute showing error message

Website:

irctc.co.in

I was required to travel urgently on 22/07/2018 from itarsi to kamakhya, so
On 21/07/2018, i logged on to irctc site to book 3ac tatkal ticket from itarsi to kamakhya by train no. & name: 12519 / ltt kyq ac exp
Exactly at 10:00 am. By the time i filled up the entries (Within 2 minutes) more than 70 seats out of total 180 seats were sold out.
When i made the payment, by netbanking, an error message screen appeared on my screen, stating clearly that payment could not be made
And i was logged out of the site.
I logged in again and booked tatkal ticket, not wasting any time on checking that my earlier transaction would have booked a ticket, as
1) i had received a clear message on my screen that payment had failed.
2) irctc site allows only one ticket booking up to 12:00 hours from one login id and one ip and in case my earlier transaction
Had booked any tatkal ticket, irctc site software will not allow me to book second tatkal ticket from the same login id and same ip.
3) only few tatkal tickets would have been available, by the time i again log in and make all the entries in the system to book ticket.
After booking my tatkal ticket, i found that even though irctc site had given me a clear error message of payment failure, it had
Booked two tickets for me with pnr no [protected] and pnr no [protected].
I cancelled one of the booked tatkal ticket no [protected], which the irctc software should have prevented me from booking and irctc has deducted all the money (Rs. 2305) on this ticket and has not made any refund on its cancellation, with none of my fault.
You are requested to please get me refunded full amount (Rs. 2305) on this ticket due to bug in the irctc software.

Regards