Indian Railways — TDR repudiated incorrectly

I had a confirmed ticket of 4 passengers in Bagh express train no: 13020 which we were to board the train at 6:10am from Lucknow NR Station. But when we reached the station we got to know that train is late by 3 hrs 36 mins so I filed a tdr according to the refund rules that if the train is late more than 3 hrs and you did not board the train you can get a full refund. So I filed the tdr 3 hours before stating the correct reason. That train arrived at 9:54am and was actually late more than 3 hrs and we did not board the train. Despite of all the reasons my tdr was repudiated stating delay in it which is wrong. I am suppose to get my refund I don't know what else to do.
Train no: 13020
Pnr no: [protected]