Since the ICO ban last September, proxies that claims to have the capability to enter pre-sale or private sale of various ICO projects have emerged in the community. The most recent case exposed is that scammers disappeared with around 140,000 ETH. The number was not verified or could be purposely exaggerated to attract attention. However, the tricks performed by scammers is neither sophisticated nor convincing. Its hard to believe how gullible that the victims are.
On 2 March, OKEX released the note of listing Refereum (RFR), which reminded the victims of their unclaimed tokens, which, they believed, should be issued to their wallet prior to listing on exchanges. So the investors began question their proxies, only to know that their tokens have not been issued and issuance of tokens depends on their location.
http://news.8btc.com/ico-proxy-allegedly-scammed-140000-eth-in-china-rfr-involved