How to appeal a nomination incorrectly marked as a duplicate

Hello - one of my nominations was flagged as a duplicate, but it is located next to another pokestop that is not the same. I cannot find any option to appeal this decision. Can anyone help me figure out to to request an appeal on it?
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If you login to Wayfarer and tap on your nomination in your contributions tab, there's an appeal button near the date the nomination was submitted. If that's not appearing, it's because you've already used another appeal too recently. Each time you appeal a nomination, you need to wait 30 days before you are able to submit another appeal.
That being said, are you absolutely sure that your nomination is not a duplicate of an existing wayspot that isn't able to be used in Pokémon Go due to proximity rules? If you provide the name and coordinates of the nomination, someone can help you check what's going on.