Please be aware of the OctaEx exchange SCAM!
At first, they seemed to be just amateurish sort of exchange with silly user interface and weird usability.
However, this was the only place where people could buy/sell some promising tokens, like ARO and some more. Even back than their customer support was slow and clumsy, but hey at least they were alive.
Like a month ago, they blocked all the withdrawals, with an error message saying something like ‘prohibited operation’ (WTF??). At the same time their custmer center just stopped reacting completely.
Now they’ve dropped Twitter and Telegram accounts.
Caution! Scam!
See in Bitcointalk:
https://bitcointalk.org/index.php?topic=4426001.0
https://bitcointalk.org/index.php?topic=4421347.0