Well, I didn't know that list, I'm not sure if bc.game accepts players from Colombia, it seems so, since a local license is required.
I don't see Colombia as part of the Blacklisted Countries by BC.game, so I guess it's ok to sign up and play there.
I think it's not a scam since it has a verified affiliated logo of bc.game official on that Twitter account. As far as I know if the account has a logo in its Twitter handle they're the one who verified it, unless the Twitter account got hacked and the hacker is the one who verified it.
Elon Musk fucked up Twitter all for money. Now, all one needs to get that Blue checkmark is around 8 dollars per month. Scammers can also afford that. The account has only one tweet
Suspicious account -
https://twitter.com/bcgbonusOfficial account -
https://twitter.com/BCGameOfficial (Notice the golden checkmark?)