Missed this earlier while I was in Africa:
"The final leg was AirBC SEA-YVR. Good for 500 miles, but NO STAR ALLIANCE miles on UAL YTD total. NO * MILES. NO Q MILES."
What's a Star Alliance Miles. You should get Q miles as this. From the UA website:
AIR CANADA
" A Star Alliance member
Earning miles
Air Canada and Air Canada Connector®
--Air BC is an Air Canada Connector.
If you haven't claimed this from UA, I would write them and copy the website page:
http://ual.com/site/primary/1,10017,1180,00.html