This is a message to all potential new Amazon FBA sellers - do not sell on Amazon FBA unless you've read through ALL their policies in detail.
As a new seller, I've had an extremely negative experience selling here with many surprises, and I ended up being charged over $3,100. Some of these surprises come from policies that are hidden and you won't know, until it's too late.
With a failing business (from the ridiculous FBA fees that are charged just for storage), I decided to stop selling on Amazon FBA. With this, I was given an option to stop Amazon FBA and have the items returned to me. In this return process, I tried to look to see if I would be charged for this - nothing was to be found during this process. Amazon ends up charging me over $3,100 for the FBA removals. If you didn't search for their policy using the exact search terms of "FBA removal order fee" then you'd also be unaware of this policy, and subsequently charged.
Getting in touch with Amazon support has been horrible. My feeling is that this is intentional, making the process of contacting an actual person difficult while they have their support team offshore. I have a couple of email responses from members of their "leadership team" (Amala S. and Kurt L.) who both give me a copy and paste exact same response. No real help there, unsympathetic, while treating you just as another number.
From what I've experienced, I wouldn't doubt many others feel the same. If you have experienced something similar, I would encourage posting here and discussing, in order to help and save others the headache and financial hardship. This has left an extremely negative experience with Amazon as a whole, and this is my genuine warning to all potential Amazon sellers.