It is very unlikely bitfinex would be scamming you, and they will get back to you on your support tickets.
It's very unlikely? What makes you say that? You do realize that a ridiculous number of Bitcoin "exchanges" have ended with the majority of the users losing money, don't you?
Has there been third party audits of BitFinex's operations?
No, but I and others obv use them continuously. Why would they suddenly scam this unstable guy off some half a bitcoin? Seems unlikely, he should calm down and explain his issue better.
half a bitcoin here, half a bitcoin there...
aaaand...
you get a gox.