"process takes 20 min and involves checking test and simple arithmetics test (both timed). No need to be afraid ot them, just do them."
Was just looking through the posts in the thread and saw this - my online test had two sections, both of which were the checking test - on the first one I was shown my results, I assume it was a dry run, and on the second one clicking on the finish button took me to the NATS website. No mental arithmetic mentioned, unless I will be getting an email about that soon?