renaming rules

I'm wondering why don't-rename rules don't seem to work. For example, I've had "exxon" as a don't-rewrite but still when I download transactions it
invariably just puts exxon in the register [and then I can right-click and get the actual station name put in]. Do you have to do something special [other than the obvious] to get don't-rewrite to really make it stop rewriting? [Q deluxe, 2019]
/Bernie\
--
Bernie Cosell Fantasy Farm Fibers
snipped-for-privacy@fantasyfarm.com Pearisburg, VA
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