It wouldn't be the first time it's happened! However, in the past, there's usually been more than one person complaining about not receiving the emails. From what I can tell by reading here and other forums no one else has reported not receiving the emails recently.
A very basic question, but have you checked your junk mail folder? Also, just to confirm, you are using the same email address for the ISC2 portals as you have set in your Pearson VUE ISC2 account, right?