submitted a question but can’t access the answer

I submitted a question recently because I'd received an email which purported to be from my own email address, but which I didn't send. I had an email response from someone at microsoft with a link to click to access the response, but when I click on this link I am told I'm not allowed to view the incident. I have googled this link and understand it's a link to a facebook page - I don't have facebook and I don't want it. And I can't find the question in the list of questions I've posted on various topics. Any idea what has happened? And how to proceed now? I have since found responses to similar questions and have followed the advice of changing my password for the account in question.