At my past employers it was "The VP of such-and-such said we need to ship this feature as our top priority, no exceptions"
And of course nobody remembered the setup, and logging was only accessible by the same person, so figuring out also took weeks.
Email the memo to a decision maker with the important flag on and CC: another person as a witness.
If you have been saying it for a long time and nobody has taken any action, you may use the word "escalation" as part of the subject line.
If things hit the fan, it will also make sure that what drops from the fan falls on the right people, and not on you.
They have a specific time of day, when they check their email, and they only give 30 minutes to that time, and they check emails from most recent, down.
The email comes in, two hours earlier, and, by the time they check their email, it's been buried under 50 spams, and near-spams; each of which needs to be checked, so they run out of 30 minutes, before they get to it. The next day, by email check time, another 400 spams have been thrown on top.
Think I'm kidding?
Many folks that have worked for large companies (or bureaucracies) have seen exactly this.