Please contact us at and send us the information listed below.

1. Device you use (computer, tablet pc, smartphone, etc) :

2. Operating system (Windows 10, iOS, etc) :

3. Program you use (Google chrome, Internet Explorer, OnDemandKorea app, etc) :

4. Please click and provide the following information.

Download speed :

5. Please click and send us your IP address.

IP address :

6. Details of the issue :

(Example: black screen, no sound, error message, etc.)

Once we receive the above information, we will look into the issue and reply with a potential solution as soon as possible.