My experience of the NHS is that one has to shout loud and long.
When SWMBO needed major surgery some time ago, it was only progressed as a direct result of interaction with the Consultant's secretary and ultimately with him.
Of course, this means that someone else moves down a place in the queue but when loved ones are involved the gloves have to come off.
I remember asking: "If it was your wife, would you be anxious for her to have speedy surgery?"
Consultant: "Yes I would"
DD: "And are you on good terms with her?"