New
#21
Firstly about the money. Did you pay for the machine with a credit card? If so contact the card company and see if you can dispute the payment on the grounds that you were defrauded. There is a limit to how long after the purchase you can file a claim, a telephone call to the card company would clear this up, and they usually operate 24/7 so do it now. If it's not too long ago they can claw money back even without a forwarding address. After doing that, I think that your best bet is to go to a reputable dealer. And no, you will not lose all your data, it should be recoverable.
David