Indian Railway Catering & Tourism Corporation [IRCTC] — Genuine tdr application is repudiated

It is about the train number 22858 ANVT SRC SF EXP which was 5 hrs late on date 21 dec 2022. I booked 2 tickets having PNR [protected]. Train was late more than 5 hrs from its actual time. So I filed TDR for this PNR. But my TDR application is repudiated. I can’t understand why they rejected my TDR. I want to know why TDR get rejected. My reason for filing TDR is genuine. IRCTC can easily check at what time train was reached at station.I want my full refund for TDR