1) You posted a review which presumably got flagged as being spam/low-quality (maybe an automated system flagged it for having ALL CAPS or curse words, or who knows what).

2) You posted the same review on a different account, which now is flagged as double spam because now it looks like you are operating a sock-puppet account.

I think my version of events sounds a lot more likely than yours. If your thing was true, then you could sign up right now with your own fake business and find the page where you can remove reviews of your own business. Since no one has shown this to happen, one can only assume that it doesn't happen.

I think Google/Amazon etc try to mostly remove fake reviews, and that probably just catches reviewers who are giving 1 star angry-rants as "spam".