I realized way too late that I didn't understand how this service works. I will never, ever see a return on my investment. I paid almost 1.4 BTC for 1TH/s on September 4th. It is now October 14th and I have barely made 0.4 BTC back. It's my own fault, I didn't realize that when the round is over my hash goes away. I thought it would be transferred or added in to the new round. I'm very disappointed.
Yes. Its seems like as scam.
Boughted hashpower would never return its price.
Only hashnest (bitminetech) have a profit.