Indian Railway Catering & Tourism Corporation [IRCTC] — TDR raised on PNR.No:[protected]

Sir,
I have booked Three tickets from CBE to NJP for journey date on 13th Jan 2021 in IRCTC for train No.02507. However on 12th Jan 2021 after the chart prepared i have got One ticket in RAC and Two tickets were in WL. So i filed TDR by selecting with reason Party Partially Confirmed/Waitlisted And All Passengers Did Not Travel on 12th Jan 2021 at 02:09 PM. However they rejected by mentioning repudiated by system as per the Indian Railways Refund Rules. But even after mailing them several times to [protected]@irctc.co.in for atleast refund for the WL tickets, they are not replying. At least the waitlisted tickets amount to be refunded. But as per rules i have filed TDR 1 day before the arrival of train at my destination and they should refund the amount for RAC ticket also. Please help.