Since you refuse to give them what they asked, pretty much.

Well, you could say that.

You're still lucky you could access the account though. My accounts on two exchanges with small balance on it were probably deleted. I'd probably be pissed too if one day those altcoins that I once had there would pump 1000X

Out of curiosity, what was the value in fiat of that 0.5BTC when you decided to just leave it there?