I have bought dozens and dozens of items on Amazon and am a Prime customer.
I agree you have to read the fine print and one also needs to understand who you are buying from.
Amazon sells products bought owned and inventoried by them. They gladly handle shipping issues, issue credits,etc
They also stock other peoples inventory and fullfill orders FOR them.
Usually Amazon is responsible for damages, returns,etc
Then there are products that are sold on the Amazon website but are shipped from the company listed. Read the fine print.
These products are NOT supported by Amazon and you have to deal with the third party.
I had this happen to me this Christmas and it was the first and worst experience I have had on Amazon.
My son bought me a gift on my Amazon wish list. It was the wrong item.
I contacted Amazon and they said my son had to contact the seller to get a RA to return it. Amazon was not responsible as they did not fulfill it.
If it had been fulfilled by Amazon I could have exchanged it with Amazon.
I still don't have the right one and I hope I get it in the next week or so.
I will never put anything on my wish list again that is not fulfilled by A.