I know there's a discussion about this issue somewhere, but I can't find it now.

I was looking at YYZ-LAS for Dec 5-7 and there's a pretty good $200 Tango+ fare right now. When I apply one of the IHG 10% off (Stay and Save) codes it actually adds approx 10% to the fare in each direction. Anyone else seeing this problem? Latitude and Exec Class fares have the 10% correctly applied.

Interestingly the Date Tab shows the correct $180 as the Day's lowest, but there aren't any $180 fares shown. The problem seems to be that $200 is an "S" fare and when the code is applied only a "W" fare shows up.