Rent.com / Stole deopsit

I sent rent.com $850 as a deposit on an apartment in Fenway. They told me once payment was received I would be able to look at the apartment and then the contract would be sent and I could finalize the details. After sending the $850 they told me I needed to send the next 5 months rent upfront or the contract was void! Ironically I had yet to see the contract nor the property so I had no intention to send more money upfront. I asked for my money back and have never heard from them again! What a scam!! Never use them!!