What Roku model device are you using? How did you add the channel? Did you add it through the Roku channel store online or through the Roku device itself?
Please be aware that channel availability/access on Roku devices will vary from region to region. A Roku device will work in any location, however, channels may not be available on your device in that location, based on each channel provider's discretion. For more information, you'd want to contact any specific channel/service provider to inquire further about whether they offer their channel/service on the Roku platform in your region.