I wouldn't hold my breathe since they stated they do not cater to American citizens anymore they are probably going to tell you something along these lines:
"Since we have in our terms of service we are no longer allowing American customers to deposit or withdrawal from our site, and you put in a deposit after the fact of our rules and regulations stated this, then we are no obligated to send any funds to you."
I can imagine them saying this as it is a substantial amount to most people and the casinos do not care for the audience who no longer use their site and services.