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Wake up this morning while browsing Amazon.com noticed a banner saying using Discover Credit Card cash back point to pay, you will get 30% discount (Max $ 30).
(You don’t need use all the cash back point, just $ 0.01 should be sufficient)
e.g.
So I tried it, worked like a charm, I got an Apple Penci 2(https://amzn.to/3FJ7lNb) for like $ 67 +tax
So, this is an YMMV deal. Good luck.
Happy New Year !