This was a text message from someone called Freya from Amazon Australia recruitment. I didn't know they had a recruitment section. It was for a part time remote role helping sellers optimise product pages for better visibility. You need to be 25 years or older. Amazon does have a jobs page for Australia but I couldn't dig any deeper as I didn't have any other details to go on. If someone wants to call the mobile number and report back, I'd be interested to find out if the text is legit.