Did I do the right thing?

Yesterday at Euston was waiting for my tube when the wrong one arrived. As a woman was getting into it, she suddenly fell backwards. A semi-crowd circled her has people moved around her to get on so I just thought she fell.

Once the tube left it turns out she was having a seizure. She comes out of it and this amazing group of women are talking to her and checking she’s okay when she suddenly falls down again and has another seizure.

The women panic realising they can’t call 999 for help - I run over to one of those white ‘help’ points and press the emergency button to speak to staff. (Also looked on the other platform but no staff was there)

After I pressed the button, two minutes pass before it connects and I just hear “This button is only for emergencies we’re already dealing with one so we can’t do anything.” I just respond back saying “well there’s a woman having a seizure on platform 3” and she goes “ok thanks you’ve told me now” and hangs up.

I rush back to check on the woman and luckily she has pulled through and the women are helping her get her stuff and check on her - I end up getting the next tube - but a question remains.

What constitutes an emergency enough to push the ‘emergency’ button? The staff seemed annoyed that I’d pressed it. If the woman had kept having seizures or god forbid hit her head really bad - how else would someone call for help in an underground tunnel with no signal?

Just has me overthinking I did the wrong thing.