John Smith Fake Orders

We’re seeing a client get daily orders from ‘John Smith’. The email is typically johnsmith…@storebotmail.joonix.net the payment was via Klarna and cancelled. The orders seem to be from the same 2/3 addresses which lead to a Library and a Primary school.

I’ve read that John smith is a Googlebot seeing if merchant centre prices & web prices line up but I’ve also read that Googlebots will be under a Gmail email - so I’m hesitant at blocking these.

Any ideas/advice?