Use of Lounge pass when not flying AC?
I have an all-day stopover at Heathrow coming up and a Maple Leaf Lounge pass I would like to use. However I am only flying AC for my YHZ-YYZ leg and flying through Heathrow on British Airways, which goes against the fine print on the pass.
Has anyone had success using passes when flying on another airline? Any other suggestions for Heathrow?
Thanks...
PRS