To practice as a nurse she needs the advanced diploma – it may be worth looking at it she has passed this with the rest of the course she has done. I did nursing a long time ago so this may have changed, however our course was for the diploma with the degree based on the dissertation.
There are many ways she could then go on to to do the degree later open university – or obviously via her institution that she is currently with.
We were among the first year to do nursing at Sheffield hallam as previously nursing had been delivered at the uni of Sheffield. There were many complaints about the way the course was delivered and supervised.
I would say don’t be afraid to pursue the uni for letting down their side of things. Nursing courses are hard in terms of juggling study and work placements and the tutors have to be available to offer guidance.
If she has passed her diploma this should give her some reassurance that she can start looking for work whilst she sorts out the degree/dissertation.