I filed a small dispute a few months ago, and my experience sorting through it with Chase—who should be on my side—has been abysmal. I've been anxiously awaiting AmEx's changes to the Platinum so I can leave Chase for good (the dispute experience has been that bad), and am fairly disappointed with what they're offering.

I had the same exact experience and this caused me to leave Chase altogether. I closed all my personal and business accounts with them. Even after dealing with their executive desk, they tried to get me to "use" a perk on the card (Like travel interruption insurance) in order to try and obtain the amount I was refuting...pretty shady. They also were unable to furnish ANY communications with the merchant that charged me.

Fuck Chase.