InCommon and Comodo have clarified the currently available support options for the InCommon Certificate Service.
Please note that there are separate e-mail addresses and phone numbers for different types of issues. If the distinction is not clear, let us know and we'll try to clarify further.
Other support paths are being considered. For example, we plan to deploy an issue tracking system for enhancement requests to the Certificate Service Manager (CSM). A general help desk system is being discussed as well. We'll let you know as these options gather momentum.