Don't bother with Irish Rail you will get the usual it didn't happen routine.
Contact
info@rsc.ie with the details
Do so as soon as possible to ensure the train data recorder can be recovered to figure out what happened.
I was involved in s similar issue a while back, which Irish Rail denied when the RSC asked, then blamed the driver, when I showed that the published platform length was 12 m shorter than the train, the district manager got into trouble.