If you're having problems, the best (and fastest) way to get help is contact us via email: [email protected].
Our support team is usually able to help you within hours on weekdays. If you can, please forward any error messages or screenshots of the issue. Describe your problem in as much detail as possible: the more information you provide, the easier it's for us to identify the problem and help you.
I'm a Premium user but the tests are locked
Most likely you're not logged in. We keep everyone logged in at all times and there's really no need for you to ever log out of your Premium account. If you did log out, or cleared your browser cache, or changed devices, please log back in by following instructions in this article.
You can also use the live chat by clicking "Get Support" in the navigation menu (top right):
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