Hey @devyop , Celine from the Figma Community Support team here. I don’t speak Korean, I hope it’s okey I continue in English here!
I checked internally and can confirm that we received your support request regarding the change from a Dev seat to a Full seat.
I’ve added a note to your case and escalated it for further review. Since this involves account-specific billing details, our support team will confirm whether the upgrade was unintentional and advise you on the available options. For reference, your support case is #2162006.
There’s no need to submit another request,the team will follow up directly through your existing support case as soon as possible. Thank you for your patience!
Update: The support agent was able to resolve your issue. Please check directly your inbox for the full details.
To help prevent unexpected charges in the future, please review any prompts carefully before accepting a seat upgrade, as this may move you to a higher-priced seat type. I’ll go ahead and close the topic here, thank you!