If you are currently on Yahoo! Web Hosting Starter, Standard, Professional or the more recent Yahoo! Web Hosting package, and are trying to change your plan to the new Yahoo! Web Hosting packages there is a known issue that will prevent you from being able to make this change. We apologize for any trouble this may cause. Our engineers are aware of this issue and are working on a resolution that will allow you to switch to either Yahoo! Web Hosting Basic, Advanced or Premier. If you need further assistance please contact Customer Care.