Thanks for the correction. The full explanation, kindly given by Juan Tugoh makes full sense. In any organisation that I have worked in, or heard of, across 30 years of my working life routinely add requests for a one-off, or change the daily schedule with a meeting and explanation.
I welcome more of this intransigence being made public. We can all think of examples in our daily working lives when we do something that is not in our job description.