3 point - I was writing on the basis that the ATC advice was most likely given in the post aptitude test debrief at OASC. This isn't something that would be said in Glasgow most likely. Details.......!
Fanstop - writing to COMNA is a great idea. I have used a similar approach in the past and it paid off to a degree. Contacts and diplomacy can be VERY useful tools!
Best of luck to you!
BL