i keep getting emails about apple purchases i have not made?

If you followed procedures outlined here > What to do before selling or giving away your iPhone, iPad, or iPod touch - Apple Support - it is not possible for the person to which you sold you iPhone to be the cause of this.

Lots of folks get these stylized messages due to SCAMmers phishing attempts - read through all of the following:

Phishing & Other Suspicious Emails

Identifying legitimate emails from the iTunes Store - Apple Support

Identifying fraudulent "phishing" email - Apple Support