Hi @하진현, Celyn from Figma Community Support here.
Thanks for reaching out, I hope its okay for me to reply in English.
Just a heads up that I've merged your post from the other forum thread into this one to help keep everything together.
I understand that you canceled your subscription but still received a charge. I was able to locate your support request, Ticket #1986843, and can confirm that our Billing team has received it.
Your refund request is currently being reviewed, and someone from the team will get back to you via email as soon as they're able. In the meantime, please keep an eye on your inbox for updates.
We appreciate your patience while the team looks into this for you.