How do I get rid of My calendar spam?

Follow the advice posted by Axel Foley, in Calendar spam - Apple Community

Also read this, as you got phished with that calendar subscription—lots of scammers trying lots of other scams, too...

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

Staceydriver2 wrote:

My calendar has been spammed, how do I get rid of it.

Read this link---->Calendar spam - Apple Community for an answer to your question.