You need to contact your nearest authority ASAP! The police, the Government agency in charge of Security frauds.
It may not help but if there is any money left to get, it won't be there long.
Please show me one singular case, some evidance where someone got recovered 10,000 USD $ from LR.
Even if he (the victim) has proofs and someone decided to open a file than he will be actually suing LR themselves because no one knows who really run GPI (therefore no responsibility).
LR is all about "get paid, stay paid", it's written in the TOS.
When I want to get LR, I accept to pay fee to use LR services.
LR services includes: getting "valuable" on-screen numbers , and everyone is free to do whatever he wish with them unless it contradicts some government interests as it's the only entity that can shut LR down (and even than you may not recover any money).
LR also has the legal right to decline orders from LR exchangers to 'buy' LR back. I assume it's written in the contract between LR and their exchanger "partners".
So with LR you really pay for the "possibility" to move data/information across the globe with a confidence it's $$ value will be honored in the future and there is no one to sue.
Good luck with that!