Originally Posted by
bitburgr
I tried logging in with my email address (after all, it does say email address or rewards number) only to be presented with a message that says that I can't use my email address. Uhh, that would be a problem. (I'm too lazy to stand up and grab my card to find my number.)
First time I tried to login, it asked me to confirm my e-mail address. I received an e-mail and since then I can log in with my e-mail address (not sure if that is mandatory to login with your e-mail address, though)