Truth will ultimately prevail where there is pains to bring it to light.

Accurate accounts do not surface by themselves, and the eventual part depends entirely on somebody doing the work. Left alone, a false version stands indefinitely, because it is usually more convenient and better told. The optimism only holds if you supply the effort it quietly assumes.

Where something has been misrepresented and it matters, the useful step is documentation rather than argument. Write down what happened, dated, while you still remember it clearly. Patience helps, and patience without a record is just waiting.