Unfortunately, you fell for a scam. They were never a real company. That website has never been registered. This company likely doesn't even exist.
All they have to do is stop answering phones or email and they can just disappear into cyberspace.
Where does that leave you? If you paid by credit or debit card, contact your card carrier and dispute the charges. If you paid by some other method, unfortunately, it leaves you out your money unless/until law enforcement can find out who and where they really are and bring them to justice. Then you could sue the company or have your scammer prosecuted. But otherwise, apart from hiring a private detective to try to turn them up -- probably throwing good money after bad -- there is nothing you'll be able to do.
You need to report this to your police and also online to the FBI at IC3.gov, which is their Internet Crime Complaint Center. When you are the victim of a crime, your unreimbursed losses are tax deductible. So in the worst case scenario, if the police come up with nothing, you would be able to get something back in the form of a deduction when you filed your taxes.
But also, if you haven't done so already, you need to take precautions against identity theft. You already gave them your bank information, and you need to talk to your bank about that. If you gave them remote access to your computer, they can plant malware that logs your keystrokes and get your passwords and break into your financial accounts.
Then you would need to have a verified professional tech -- someone you actually know in the community, such as a tech person in your local computer shop -- debug it and change all of the pin numbers and passwords.
You would also want to monitor your financial accounts carefully so that you can report any unauthorized withdrawals and get your money back.
Following those precautions should keep your identity secure.