Share Share on Facebook Share on Twitter Pinterest Email René René de Lambert is a contributing writer and the founder of RenesPoints. He is an avid Delta and SkyTeam flyer who has held Delta’s top Diamond Medallion status for many years and flown millions of miles. Website 1 Comment DDiamond 4 years ago Reply This could very well have more to do with American Express than Delta seeing how Amex has to buy these points and probably some MQM’s from Delta. AMEX recently changed the rewards refund on the Bus. Platinum reward purchases from 50% to 30%. This looks more like AMEX trying to cut expenses. Write A Comment Cancel Reply Save my name, email, and website in this browser for the next time I comment. Notify me of new posts by email.