I did IPPT today, and failed...
...but I don't have to do RT! Ahahahaha... 
Because of the IHL (Institute of Higher Learning) immunity?
But recently my Div HQ sent a letter to me saying that I'm no
longer covered under IHL leh.... I signed up for IPT as a result to
protect myself.
During IPT, I met a few undergrads from NUS and NTU. They said
that they also received the letter saying that they were liable for
RT if they didn't pass. In fact, a couple of them were freshmen. If
I'm not wrong, they abolished IHL immunity recently.
Did you receive any letter from MINDEF/your unit regarding
this?