Hi, guys!
I had no problem with Hashflare. I made an ETH contract with a few bucks. Couldnīt reinvest, because you only can do this with BTC. My ETH contract expired in 27th August and when i tried to withdraw, i recieved this alert: "you donīt have funds enough to withdraw" (ofc, i made it with few bucks). So, i sent an e-mail to support, recieved a link to withdraw and got my funds really quick.
I know the BTC contracts had problems in a past year, but in my case, everything was really fine.
Good luck and cheers!