Hey @ceria512 — thanks for reaching out!
We don't currently offer support in Korean on Figma Forum, so I hope it's okay that I'm replying in English.
To stop the automatic renewal, you can cancel the plan yourself: Open the file browser, click Admin → Settings, then under Plan click Cancel plan and choose a reason. Your team keeps its paid features through the end of the current billing period, then moves to the free Starter plan. Full steps are here: Upgrade or downgrade your plan → Downgrade or cancel your plan.
For the charge itself, our Customer Support team will need to review your account, since I can't access billing details from this public space. I've shared your request with the full context. Your case number is: 2045198, and they'll reach out at the email tied to your Figma account.
Keep an eye on your inbox for their reply. 🙏🏻