Thank you for posting on the Bose Community. Sorry to read that you are yet to hear back from the team.
This isn't something that we can assist with via the community as we don't have access to Bose South Korea's customer support tools. I would recommend that you reach out to them via all of the contact methods listed here.
Sorry that this isn't something our team can personally assist you with. If you ever need further assistance please do come back to the community and we will do the best we can to assist you.