Aviator Red from the US Airways days with the 10K mile annual bonus. Minimal spending, mostly just to hit bonuses. Called a couple weeks before the AF hit, no offers or fee waiver. Put a couple hundred dollars of spending on the card, just in case it helps. Called in a few days after the annual fee hit and was offered $100 statement credit for $1000 spending in each of the next 3 months. Accepted offer.
I called the number on the back of the card.