Indian Railway Catering & Tourism Corporation [IRCTC] — Ticket still waiting list upto train arrived

PNR No: [protected]
Journey Date : 09/01/2021C lass : 2S
Station From: Thanjavur Station To : sirkazhi
I had booked one ticket on irctc application by using paytm for 76.8 .The booking ticket current status: WL75 . But ticket was still in waiting list. After the the chart was prepared as per rules the waiting list ticket (WL 24) should automatically be cancelled but it was not cancelled. I tried to cancel the ticket but the train has already departed. Since it was in waiting list. since I could not get confirmed ticket, the passenger could not travel. Hence I should get my ticket amount back. The online waiting ticket is equal to no ticket because its not valid if its in waiting state. Hence the ticket amount should be refunded to amount only Rs.5 .But why full amount not refunded to my account.
PNR-[protected]
Trn:06796
Dt:09-01-21
Frm TJ to SY
Cls:2S
P1-WL, 24
Chart Prepared
Help/Enquiry/ComplaintNo.-139, Security-182
Your Tickets are not confirmed.
I get this message for irctc.