...do online casinos need a license given by the government of Vietnam in order to be able to operate in their country?
In my country, in Philippines, yes. Since my country has casino license provider (PAGCOR), any casino that is not licensed through them should not be used by any people from here, that's our law here, i guess this is the same in OP's country or in any country too regarding the license from Curacao of the X casino.
To OP, are you sure that it's the correct site you are using? i see on your screenshot it's
viplucky2023.com
I search this site with BK8, i see no connection between them. What i search is "bk8asian.com" for countries like Vietnam, Indo, Malaysia, etc.
yes bro. correct site. I played BK8 before. So i know that site.