iCloud Calendar notifications stuck on Apple ID

I am troubleshooting a persistent cloud synchronization bug on my Apple ID account. I have two ghost calendar notification sync tokens stuck in my account's notification queue. The invitations do not exist on any device inbox (iphone or laptop), and the original source events have been completely deleted from the sender's calendar. However, the raw backend account notification queue is still broadcasting these two dead data entries to the iCloud sync API as indicated by they display in the notifications on Outlook and cannot be accepted or declined. How can I get support for an administrative profile refresh script to flush the stuck notification server cache on my Apple ID profile?