Lying

I'm confused about this: When someone queues up as support only to find a match faster, but in fact builds a Doran Ring to start, buys no wards, and builds pure damage instead: What report does that go under?

That is to say, the person builds pure to the mage or assassin role, which is a different role entirely. You can't say you're a support if you fit into assassin or mage with your build. It's not okay to lie about your role in the Team Builder lobby.

EDIT: The reason I say this is because the role is not decided by the champion, it's decided by the build. If I click Tank and pick shen: Yes, Shen is supposed to be a tank. It's a lie, however, if I build six Rabadon's.