In addition to e-mailing ReadCube Support directly, you can also request support via our desktop application:
However, upon clicking that button, you may receive an error similar to this:
To resolve this error, head into the settings of your default browser (Safari for OS X and Internet Explorer for Windows) and clear out your history and cache. Here is an example of how this option looks in Safari:
Once you clear your cache, simply refresh your browser and that "support" button on the ReadCube desktop app should again work correctly for you.