Tests for English to Simplified Chinese are currently closed. We open and close tests based on availability and customer demand, so it is possible that we will open them again in the future, though there is no way of telling when this would happen. If you are interested, you can leave your name and email address here (http://svy.mk/1SBA6Rf) to receive a notification if / when the tests are open again.
Hope this helps!
Lara, thanks for your detailed relpy!♥ω♥