This number has called my cell numerous time and usually very inopportune moments. They asked for me by name. Claimed to be from Amazon wanting to send me an email regarding my handmade products.
I think that they are using Etsy to canvass as they asked if they were calling *business* which is the name that I use on Etsy and no other sites.
As the call was from the USA and I am based in England, I guessed it was a scam call and hung up. This number is now blocked on my cell phone.
Never heard of Amazon doing that. What I would suggest in this case is doing a web search for Amazon's Customer Service number, calling that, and asking about this because from just looking at the site, you gotta possibly PAY to sell on there. I'm betting they want your email to send you a malware-laced message so they can get into your computer, but that's just my feelings on the matter. Do let us know what comes of this. (Oh, and BTW, Amazon wouldn't have a normal area code number)