IF, what has been posted above is correct then some action has to be taken by members of both unions.
IF, the “word from the Union briefings” is correct then clearly the NTUS is not fit for purpose and they need to be replaced with people who are able to stand up to a management side that seem to have been running rings around the present incumbents for some time.
The first thing that needs to be done by either this or a new NTUS is to get rid of the ridiculous “Working together” nonsense.
You could actually keep it if you tweeked it slightly. Make it so that the NTUS is “working together” with the members, and not the management.