How can i contact riot for this case?

Hi! I recently started making costumes in Vroidstudio for my own "Vtuber" to cosplay Valorant characters. People were if I would sell them to other vtubers. the costumes are hand-drawn and take me around 1 to 2 months to make. I wanted to ask if it is valid to sell them on a page, like booth. pm. In the Riot guidelines I read, it said that a cosplay creator could sell as long as the client can only use it for personal and non-commercial use. Am i within the rules in my case?. Specifically, if I can or cannot legally sell my cosplay drawings or if I would get a warning from Riot. I am not a store, just a person who will not receive more than 5000 yens per month. how can I contact someone from Riot to ask in a better way.