I once found a much cheaper rate on Ctrip (Chinese online travel agent) that had the exact same terms and even beat the Accor Plus members' rate. I contacted Accor Plus and to be fair they offered the lower rate by contacting the hotel for me (Sofitel Guangzhou) but said that BRsg would be declined for the following reason: the online travel agency booking isn't "live" and is only confirmed once you go through the booking process!! What a silly excuse! Anyway, i was still annoyed that Accor Plus isn't giving the best rate as promised (10% off best rate) so I didn't bother booking in the end for a weekend escape so they lost a booking.