Is this self contradictory?

Making a claim of 3 star service, without providing 3 star service evidence, isn't any different than a claim like they don't clean the dishes enough. Sure, you didn't write out the exact words, but by submitting the review, you still submitted such a claim, and so it remains a question of if you provided evidence to prove it, which gets into how deep the legal system wants the evidence verified (is a picture enough, or do you need to provide evidence the picture is of the store at the date and time relevant to your review).