Email address is not on file

[IndieAuthor]

I got my MJ yesterday, registered, got the confirmation email and even paid for the first year. After unplugging it for the night and plugging it in again, I got a request to sign in and then got --

Email address is not on file, password is invalid or magicJack serial number is not associated with login

I've called them and explained I can't use their live chat because the same thing happens then (invalid email, which is required to speak with Live Help). They told me to try again in a couple of hours.

Does anyone know how often this happens?