What possible kind of 'human error'?
I'm confused, what possible kind of 'human error' could see the audio recordings of one Alexa, which I assume was working perfectly for the gentleman who owned it and therefore must have been integrated with his own account, delivered to a completely different account owner?
Occam's razor suggests to me:
1. Find Alexa ID(s) for requester from "account information" tool.
2. (Mis)type ID into "get recordings" tool.