I have the same bad experience with EXMO. 29 Dec ordered withdrawals in BCH, but after 1 day it still "on check". Now I can see a lot of complains on same issue. I think EXMO is a scam.
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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.