Hello Frank,
I am clear about it and I implemented it that way.
We have two type of lists and tags 
1) UXIC members only
2) UXIC Cancelled
When a member is added to the level and active Then the member is added to UXIC members only list and UXIC members only tag 
When a member is canceled or removed from the membership level we remove it from UXIC members only and add to UXIC Cancelled list and UXIC Cancelle tag.