amazon scam?

When in doubt, treat everything as a scam until you can verify the source and information. I've never received an email from Amazon concerning my CC details. When my card expired, then and only then did I receive an email that my purchase was denied due to CC information was out of date (bank issued me a new secure card). Since you've never heard of a "selling coach" and your card doesn't expire for a long time, this is most likely a scam.

Delete it

amazon selling coach is some training program not connected with Amazon, other than teaching people about it.

You didn't subscribe to a trail or something a few years ago?

It must be a scam, because credit cards only expire at the end of months. No credit cards expire in 7 days from now, because that's not the end of a month.