But that is bitter part of this reality there is no choice to take withdraw as they claimed someone hacked the exchange and take away all the funds. This is true dev team has no ability to do this I also facing same problem but we have to wait for solution which will be provided by the team.
My friend, the wallets have been blocked for months, and before the hack. NANO during this period has always told us to trust Bitgrail, now they can not suddenly change their mind, washing their hands, understand me