Personal blogs, facebook posts, self-published papers on arxiv, web forum comments, etc. are not in general credible sources (for Wikipedia’s purposes) but can be in this kind of circumstance.
PaulDavisThe1st: you should definitely publish your anecdote(s) and corrections somewhere, and not just for Wikipedia’s benefit.
Anything you write on Wikipedia is written in "anonymous worker bee" mode. It doesn't count as written by you, even if you wrote it. Any editor could change what you wrote.
If you want to tell the story of something that happened at Amazon, you should write an article on your own website and publish it under your own name. Then anyone can cite it (including Wikipedia) as written by you, and it can't be changed or removed without your consent.
(Some might not think a personal blog is a good enough citation, but that's their problem.)