FlyerTalk Forums - View Single Post - Any way to block a charge before it posts?
Old Apr 14, 2020 | 7:00 pm
  #6  
LAX_Esq
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Amex allows you to block a specific merchant from putting forward future charges. It's designed so you can block scammy auto-pay stuff, but you can block non auto-pay stuff as well.

YMMV with non-Amex cards.
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