That's not true. Returning officers announce the number of rejected ballot papers, and explain why they were rejected, at the same time as this winner is announced.
For example:
https://youtu.be/jbDgT3b-M44?t=117
That's not true. Returning officers announce the number of rejected ballot papers, and explain why they were rejected, at the same time as this winner is announced.
For example:
https://youtu.be/jbDgT3b-M44?t=117