How to cancel the Zoom service

Dear all Zoom users, I am a very bad experience on using Zoom.

Zoom will not easy to let you leave. 

I would like to cancel the Zoom meetings Pro account.

And I subscripted a Conference Room Connector in the same time.

I need to cancel the "Conference Room Connector". before I can cancel the Pro Account subscription.

The problem is Zoom is not allow you to cancel the "Conference Room Connector", so as to cancel the Pro Account subscription is impossible.

I have worked with this issue for a years, and my account still stick with "Conference Room Connector" and forcing me to pay what I don't need.