Btcdo exchange is one of the unsuccessful exchanges, the discoverance of this exchange was in 2018 in Hongkong. Though, for an exchange to be launched in 2018, it simply means it is a recently established exchange, so it is so quick for this exchange to be dead now and even during it activeness the exchange did not achieve any goal before it went off. I tried accessing this exchange through the use of vpn to know if my country was restricted but it was unfortunate to know that this exchange was solely inaccessible.
The telegram group has been offline, this shows the irresponsibility of the exchange. And I will basically advice nobody, to use this exchange because of the poor trading capabilities