Has anyone made this work? I tried to make it work. Even at 10% (Discover IT category + end of year match), you can’t buy something, have it shipped to you, sell it, ship it, and make money. Any online marketplace eats your profit very quickly with assorted fees.
https://9to5mac.com/2022/10/03/chase-apple-products-redempti...
Many of Chase's credit card sign up offers provide enough points for a cardholder to obtain an iPhone through this promotion. If the cardholder does not want the iPhone, they could resell it on a marketplace. Amazon Marketplace used to be one of these marketplaces until it started restricting listings for certain brands such as Apple.
One of the routes I'm aware of involves buying gift cards from Kroger with a high cash back credit card during their frequent events where they offer extra fuel points on purchases. They don't charge activation fees on gift cards, and you can sell the fuel points accounts somewhat under the table on eBay, and then pocket the cash back from your credit card. Then you wait til black Friday or other sales, use the gift cards to buy electronics at discounted prices, and then ship them overseas to sell for a decent markup. It involves floating tens of thousands of dollars for several months though so not quite for your average individual just trying to make some quick cash.
Your examples are unlikely to be how a "third-party reseller" obtained the phone(s).
https://sell.amazon.com/pricing#selling-plans
In the past decade, Amazon started adding brand restrictions to prevent marketplace sellers from offering items on certain listings unless they met requirements set by the brand owner. This collapsed Amazon's marketplace for used goods of restricted brands and also hindered individuals selling new goods of restricted brands on Amazon. This lawsuit focuses on new goods of one of these restricted brands.
https://sell.amazon.com/pricing#selling-plans
Prior to Amazon's brand restrictions, Amazon Marketplace was a popular place for individuals to sell unwanted new and used goods. Selling on Amazon was even easier than selling on eBay, since there was no need to make a new product listing with photos and descriptions. Most of the new goods sold by Individual sellers were not raffle prizes, but unwanted goods such as gifts, items obtained at a discount, and items that were not eligible for free return to the original retailer.
It sucks.
I'm sure the reason is because of fraudulent items, which also sucks.
Pretty bad catch-22.
Anyway, I got this seller account to sell a couple of books. Used it a couple of times a decade. If I won an iPhone in a raffle, I'd absolutely be trying to sell it on Amazon.