Join Date: Jan 2014
Location: TYS/BNA/ATL
Programs: UR, TYP, MR, C1, WF, AA, UA, WN, BA, AS, AV, AC, Choice, Hyatt, IHG, Hilton, Wyndham, Marriott
Posts: 2,372
Let me explain how WN PGGM works.
1. Buy tickets with points and pay taxes with CNB card
2. Wait for rebate to post
3. Cancel the tickets.
BTW, it also worked for me with Amex Platinum.