Old Sep 6, 16, 2:24 pm
Join Date: Jan 2009
Location: YOW
Programs: AC-SE100K, AC-3MM, Marriott- LT Titanium, SPG RIP
Posts: 2,775
the new 'Preview Upgrade Requirements for your Itinerary' shows SE paying the co=pay on Tango and Aeroplan X fares, however, the new (Beta) AIr Canada website still clearly states:

An eUpgrade Add-on will not apply to:
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Plumber is offline