Change your password.  If you have an account, that is.

Here is a link to a walk-you-through the strokes to get it done:

BEFORE start any changes … Be sure to review all of your settings, especially your mobile telephone number.

I prefer receiving the secondary authentication by text, so if the number was wrong?  It’s difficult to say how much trouble that would cause.

A word on password security: Does yours look like this?

“H1gh.35t Est3me?”

Now write it down (no not literally.) I recommend storing credentials at http://PassPack.com for a storage tool.  Yes! Keep records, but do so securely!