There could be a couple different causes, but both are easily fixable.
The RENTCafé email is caught in spam.
Open your spam filter and check for an email from “no-reply@rentcafe.com”. You may need to add “no-reply@rentcafe.com” to your spam whitelist/exceptions list.
The email we have on file for you is incorrect.
Follow these instructions to update your contact information in our system.