It feels like everyone is talking about deals on Simon Mall $1,000 gift cards right now (40% off of prepaid Visa fees with promo FS21FEB40). Yeah, they’re good at stores that aren’t Walmart, they’re high denomination, and you can buy a bunch at once easily. There’s a big problem with them though: They don’t earn points when purchased with American Express cards because AmEx blocked earning on Simon purchases.
If you’re trying to put spend on an AmEx and get something out of it, use Vanilla Gift Cards with the promo code FLASH2020, which amazingly is still working. You’ll earn spend when you go this route, and the fees are almost non-existent. They still work at most grocery chains too, just like BlackHawk gift cards.
Bonus hint: Simon business volume accounts are better than personal ones, but that has nothing to do with AmEx.