There is a trusted telegram channel where you can buy or sell your Hashrates. Join and ask and surely they will help you and guide you how. Interesting thing is that you can find cheapest contracts to purchase.
Join now to find out more
https://t.me/joinchat/HhQ7KlLNhNnHQslP0gN32wI doubt it.
Just a scam group to pretend to be admins on hashflare but then you go to them and they will tell you got scammed.
Do not go to anonymous telegram groups and give them your credentials and then not to expect to get scammed.