I dunno if this changed since he, uh "retired" but up until not too long ago, you could email
jeff@amazon.com and get well taken care of. Bezos replied to only a very few messages that went there, but supposedly he did read every one.
My personal experience with doing so: I ordered about $10,000 worth of stuff across maybe three big orders. I can't remember exactly why, but something got tripped up with the credit card payment, I went back and forth with them for a couple of days attempting some verifications, and eventually their system cancelled my orders and I had to start over. It took 3 weeks from the original orders to get the stuff that I had ordered.
I emailed
jeff@amazon.com, explained what happened, and almost immediately got back an apology and a note saying they would "make it right". I expected maybe a $100 gift card or something like that.
Nope - They gave me half off the entire order. $5,000 credited back to the card.
So, I'd say it's worth a shot. They do try to do things right at the corporate level, it seems, and I'm sure they'd appreciate knowing about your experience.
BTW, I've also heard that Bezos once called the guy who was in charge of their customer service department into his office and laid into him about long hold times. The guy denied that there were long hold times up and down... So Bezos dialed the number himself, put it on speakerphone, and glared at the guy for 20 minutes until the phone was answered, and fired him on the spot.