Always keep a record.
Your boss wants you to do something stupid? Keep a record. Get their name on it. Make a fuss if they won't do it. Keep records even if they won't sign off. Who said what, when, how, and where? Get to the point where they just scribble a sign-off or fire off the email which says "Yes, dammit, I said do it!".
You're getting complaints? Keep a record. Record what the complaint was. What the stats and systems said about the claims in that complaint. Keep the email logs. Keep recordings. Keep all available context.
You're making a complaint? Keep a record. Record everything. Their response. Check if they have fixed it regularly.
Certainly if you are reporting publicly and therefore likely to run into situations like this.