I would strongly advise against investing any money in Hashflare. These are the same people who have tried and failed similar projects such as HashCoins, Polybius, and Emercoin.
Hashflare is just another Ponzi scheme if you ask me.

For a fair and unbiased opinion, I highly recommend reading this review posted on 9/20/17: https://www.scambitcoin.com/hashflare-io/