Weird text in email after moving from waiting list after unregistration deadline has passed.

One-sentence description

Members receive a weird email when they move from the waiting list when someone unregistered after the deadline

Why?

Currently people receive a text saying that if they want, they can unregister via the website until some moment in the past. This is weird. It would be nice to say that 'the unregistration deadline has passed. However if you're not able to come, please contact somebody from the committee or the board asap'.

Current implementation

An email is sent to people moving from the waiting list, saying that if they want they can unregister until a moment in the past

Suggested implementation

After the unregistration deadline has passed, mention that they should contact the organizing committee or board.