She can just return those items to Amazon for her money back... as well as the ones she's been refunded for (as per the article, she's refunded via PayPal)
I imagine high volume returns to Amazon paired with the deletion of reviews (or seeing all her reviews on 3rd party sellers goods have only 5 stars), one may start to unravel what is occurring.
Wonder if it would just be worth it to "eat" those costs.