I would say Yes. Until I paid a miner I was receiving every day answers and help... After my payment, now are passed 20 days and my order result on hold.
Now not having answer, support, mails and not even chat assistant.
I really suppose is a scam site... but will keep you informed...
If you think you got scammed similarly then feel free to share your story with all related evidences which will help us to understand actually what happened with you. Read above scam accusations which are given by previous poster and see how they made their accusation by adding information about website, scammers profile details and conversation screenshots.
For a better view you can check this boards pinned posts area.