Praise be to Allaah.
If you were nominated to study for this diploma whilst you
were working for the university, then your name appeared on the list of
those who are accepted to study for this year, even though you have stopped
working, then there is nothing wrong with you completing these studies,
because what appears to be the case is that the university is aware of that
and has agreed to it. But if you check with the department in question, that
will be better and will be on the safe side.
And Allah knows best.