The same thing happened to me.. and it has been more than 8 days, with no reply at all from Hashflare and no hashrate was added to my account. I guess they don't care. I filed this scam warning because I do consider this a theft, unless Hashflare does something about it:
https://bitcointalk.org/index.php?topic=2557713.0Even if Hashflare was to provide either a refund or allow the purchase to go through, so much time later, maybe because these warnings are posted publicly for all potential investors to see, we never agreed for Hashflare to borrow our cryptocurrency for a large block of time, so we should be additionally compensated for that unauthorized loan. Hashflare? Are you going to do all of that? If not, then this is a scam.