Go to Pokémon.com to find the tournament you participated in. Contact the Tournament Organizer of record for the event and report the problem to him or her.
If the issue is related to your record during the tournament, the Tournament Organizer will then contact Pokémon Organized Play to have the record corrected for that match. If the Tournament Organizer does not respond to you within three days, submit a support request at support.pokemon.com, with the subject “Match Record Appeal” and the Organized Play team will do what it can to assist you. Please note that without confirmation from the Tournament Organizer, Pokémon Organized Play may be unable to make any changes to a match record.
Can’t find what you’re looking for? Click here to submit a service request form.