Brotherlys and sisterlys, the only may to mine bitcoin is to purchase the expensive apparatus involved and the hefty data.
Any body that tells you that you can get bitcoins for free is a scammer.

I even am surprised that people fall for these scams. So when you refer people bitcoin will just materialize out of thin air and enter your account?

And then all those referral schemes(mmm, etc) are just that. Schemes designed to fool gullible individuals.

Be wise.
If anybody suggests you can make money without hardwork, he is a liar...