The random Amazon items are probably the "brushing" scam[0] which I guess is about using stolen payment to generate "verified purchases" for fake reviews. [0]:

The random Amazon items are probably the "brushing" scam[0] which I guess is about using stolen payment to generate "verified purchases" for fake reviews. [0]: https://www.uspis.gov/news/scam-article/brushing-scam https://www.uspis.gov/news/scam-article/brushing-scam