Kicking me out of a test due to my instinct of Cmd + S

Today, I joined CodeChef to see where I am in coding (notably Java). I decided to take the Java intro test, which I had been on for about 5 minutes, at about a little over halfway the test, when I was coding, and pressed command S as per instinct to save my code while I was typing it. I had done this a few times prior, and the terminal kept telling me that I shouldn’t be switching tabs (as my OS saving screen was considered another tab) and that was apparently the last straw, and I got banned from that test until my scores come out… in two hours. I also just think that it would be best for CodeChef to make it impossible to Save a document from inside a test, as it is simple instinct for me to save my document as often as possible to avoid losses of information.