Funny story while waiting in the Observation Area after getting the COVID vaccination: In the first registration part, I discovered I didn't have an NHI number

Funny story while waiting in the Observation Area after getting the COVID vaccination: In the first registration part, I discovered I didn't have an NHI number because I haven't been to a doctor. Therefore I was given a Post-It note on my consent form saying "Manual Entry". After the jab, the observation nurses would call out names every few minutes: David, Priscilla, Marion, Yi Xin, Manuel, Daniel, Kyungbook, Richard... no surnames. I didn't really think much of it. Besides, it was raining outside, I had my laptop, and I wasn't in a hurry to leave. When it was almost closing, there were only two of us left. "Are you Manuel?" they asked. I said my name is Peter, not Manuel! But apparently they were calling "Manual". The Kiwi accent is hard to understand, even for a native speaker!