You can buy or sell bitcoin in the currency exchange
You can also read this article to learn how to extract free bitcoin
روش های به دست آوردن بیت کوین رایگان سایت پول توشه
Bitcoin.com is just one domain name used to promote Bitcoin. Bitcoin.com is not an official website. Just like nobody owns the email technology, nobody owns the Bitcoin network.
As such, nobody can speak with authority in the name of Bitcoin.