From the
Model Mayhem FAQ:
What do I do if I did not request an email or password change?
This might be a phishing attempt to steal your Model Mayhem information to take over your account. It might also be that someone else already has access to your profile and is attempting to alter your account information.
First, for your security, change the password to your email address. Then, change your Model Mayhem password. This will keep your account as secure as possible.
We also encourage you to read our
Avoiding Scams article.