I have been disappointed on most of the Black Friday sales in the last five years and the one I wasn't, I couldn't use (2014 I think). This year they listed links which clearly were not loaded (Jamaica), and they limited returns so it was Christmas to just before New Year and no variation, such as 28th to 4th.
Previous years they've limited it to Brazil and Vancouver, and I'm not even sure it was a 2 for 1 last year either.
Scratch that, continental club doesn't even mention a sale around November last year, so I have to assume it wasn't much cop. I don't remember even considering one around that time...