Just received my certificate and I notice it says it is not good on any promotional fares. Does this mean it can only be used on full unrestricted fares? Are any of these a bargain or would I be spending more to save the $25.00? Has anyone else used these with a good fare? Please post the best fares you have obtained and the best way to go about doing so. By the way, I sent mine in on 12/26 & just received today (2/12) for those of you still waiting.