Chase business cardholders can now refer the Sapphire Reserve for Business card, plus Marriott Gold status fast-tracking returns for Sapphire Reserve holders. A concerning new tax law threatens to kill casino loyalty programs like MGM and Caesars Rewards within six months due to increased gambling transaction reporting requirements. The Citi American Airlines Executive card's 100,000-mile offer may be ending soon, while Chase's JFK lounge faces crowding issues. Plus updates on Qatar Airways-Hilton bonus offers and Malaysia Airlines' fleet expansion plans.
