Channel Name Error

We are getting this error message while trying to submit our channel:

"Roku requires that names for channels within the Channel Store are unique. The name you have selected for your channel is not available. Please select a different name."

We have checked the channel store and we do not understand why we are getting this message because no other network is bearing our name. We have sent an email to support regarding this but we still have not received a response. Please help us with this.

Thank you.