Years ago, I had my annual review where I was labeled incompetent and put on some sort of probation.
I came close to decking my boss but decided not to.
Since my previous review was stellar, I asked just how I could fall so quickly in incompetence?
I refused to accept and sign my review. Instead I wrote a three page letter essentially demanding some form of proof of my incompetence.
(While I wasn’t told, it came down to he said/he said in reference to a disagreement with a co-worker in which he lied about a business related conversation. I actually wrote down my side of it in my calendar but that didn’t seem to count)
Long story short, someone must have sent my letter up the chain as my probation ended rather quickly and I received a very hefty raise.
And I outlasted both the jerks involved.
A good outcome - good for you.