Your comment is as helpful as directing something similar towards a victim who got into 3 not at fault traffic accidents in 2 years.

There were countless cases where they weren't coded as Hilton before the last 3 incidents in less than 2 years, but it wasn’t a too big of a deal before $50/quarter credit era for stays of a few nights or less. I’m sure there are a lot of people not seeing it worth disputing for.

After having weeks stays at one hotel, and Amex started quarterly credits, I had enough and started pursuing.Hilton US Amex: spends at hotels not earning multiplier

There are multiple reports of people unable to redeem Hilton GC, I’m sure that’s because their terminals weren’t coded as Hilton, and unable to redeem GC is a bigger deal than not earning Hilton spends multiplier for a couple of nights. People don’t start making noises until the damage recovery is worthwhile for them to get to the bottom of it.

Since Amex and Hilton refuse to play fair games, I stopped playing it, too.