Look in your junk or spam folders for any emails from us.
If you find one, open it and press the option to 'Report not spam' or similar.
Sometimes, our emails can be moved to a specific folder. If you need to do that, you should see an option to move to a more visible folder.
If you still have issues, try using a different email account, like Gmail or Yahoo.
This article details how to change the email address connected to your account.