Craft in your house or an inn room

[Jojoya]

It's a competitive market. Players watch what others are selling then try to sell the same things. This is especially true of new players trying to learn the market.

A bot isn't going to copy you. They're also much more likely to be already in an apartment doing their crafting so any behavior that gives them away as a bot won't be seen by other players to report.

Saying "Literally same town, area, and marketbaord near" doesn't add any weight to your claim and makes me wonder if you know how the marketboard works in this game. All marketboards display the same listings regardless of location. The city state flag on a listing indicates where the selling retainer is stationed, not where the player is.

If you watched the player craft the skirt or saw the name of a player standing near you match the name of the Maker's Signature on the lowest price listing, stating that would add weight to your claim.

It still doesn't matter though. You're going to need to get used to competition, especially on something like a Uraeus Skirt that's popular for glamour since it's cosmetic and not job-locked. I'm willing to bet you left out the fact that you listed your skirt lower than the 15+ already listed. Doesn't that ultimately make you just as bad as the player who undercut you?