First and foremost, the OP shouldn't have relied on a single source in making the decision to deposit money and play at any casino he came across or heard about; there are a lot of scam casinos out there that look legit. I hope he contacts their support and also writes his case on Trustpilot and attaches the link of this thread so he might find from them a solution to withdraw his deposit if they find that the OP poses a danger to the false reputation that they are building and understands from them how things will go.
[1] https://www.trustpilot.com/review/bitstarz.com