I too got duped by that username: Mamastanley (836).  I should have known that it was a fake email since it was sent to an email address that I don't use for my ebay account.  I responded to the email in hopes that I would find out who this person was.  However, when I responded, someone was able to get my username and password (since I was prompted to enter these when I responded).  Soon after, I found two postings for nokia cell phones on my ebay account that I didn't post.  There was a web site given for "shoppincentereu.lx.ro" and an email for "shoppingcenter@mac.com.  They seem to be selling electronic products, but I am not sure how legitimate it can be since they use other people's ebay accounts.

Don't answer Mamastanley's email- or any other if it prompts you to log in from the email.  Log into ebay directly, then go where you want to go.