I managed to actually nab one today after a couple weeks of constant phoning round different dealers round Scotland and asking the question.
Ordered a Vauxhall Grandland in Feb last year and been completely fobbed off by both Vauxhall and Arnold Clarke. Spoke to an extremely helpful woman at Evans Halshaw last week, who promised to do what she could to source me a car. Called me back this morning and I pick up a brand new Ford Puma ST Line (magnetic grey) tomorrow afternoon. Persistence seems to be the key here. Don’t give up and you will find someone willing to help you out.