IIRC in the WD drive case the drives were on backorder so Amazon had a longer time window for cancellations. Similar things have happened on past Prime Days /

IIRC in the WD drive case the drives were on backorder so Amazon had a longer time window for cancellations. Similar things have happened on past Prime Days / Black Fridays, I remember some smartphones (Moto?) being sold for under $3 - some were canceled, but some shipped before Amazon managed to cancel them.