During NS, does nsf have no right to speak and defence yourself when accused?

As topic, I'm an NSF and recently had an incident with a regular in my office (not my direct superior).

Basically, she questioned me about why I didn't update her about something that is apparently part of my role. The thing is, I genuinely had no idea I was supposed to do it. My upperstudy who had already ORDed never mentioned it to me, and neither did the other senior NSFs in the office.

So when she suddenly asked me, "Why didn't you do this? Why didn't you do that?", I was honestly confused. I asked her why I was expected to know about it when none of my seniors or upperstudy had ever mentioned it to me.

I admit that because I felt caught off guard and was getting defensive(I really sensitive when accused), my voice became slightly louder. But I wasn't shouting, swearing, insulting her, or speaking aggressively. It was basically just a firmer tone while trying to explain myself — nowhere near the level of shouting when losing ML due to teammate

She then focused on my tone and accused me of raising my voice at her, saying she could charge me for being rude. She also kept stopping me whenever I tried to clarify the original issue until she had finished saying what she wanted to say.

At that point I was honestly speechless and just smiled and keep apologising because I didn't know how else to react.

My question is: as an NSF, do i have the right to firmly clarify Or defend myself when I'm being questioned about something i genuinely wasn't informed about?

I understand that I should remain respectful towards regulars and seniors, and I'm not saying I should shout or be rude. But is speaking firmly Or slightly raising my voice while explaining myself already considered disrespectful/insubordination?

I'm planning to speak to someone higher up about this, mainly because I still have quite a long time before ORD and I want to know how to handle situations like this properly in the future.

For those with more NS experience, how would you handle this situation?

PS: She also sometimes assigns me tasks when her own NSFs are busy with their work. I'm generally okay with helping out (before this incident), but it does make the situation more frustrating when I helped out, yet apparently she don't recognise these effort. I really thinking her idea is nsf is dog and only things we should do is listen.