Trying to login with my username/pass, but it's not letting me.. getting the error: "The e-mail address and password you are using are not connected to an Associates account. If your Associates e-mail address or password is different from the one used with your Amazon.com customer account, please log in here. If you still have problems logging in, please contact us." But I'm 100% positive I'm using the correct login info... I can even log in to my amazon.com shopping account with it. Thoughts?