Sia withdraw on Poloniex still down

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I am not using Polo anymore
on Bittrex SC wallet works
Are you also Blocked on Poloniex with sia ?
I cannot register to bittrex the registration is close since Dember 2017

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I have withdraw all my SC a month ago, after the wallet update and I am not using Polo for SiaCoin
unfortunately Bittrex is still closed for new users, I know that...
This is a big problem for new SC users & investors, Polo down, Bittrex closed for new.... not good at all
Hum thank you for you ranswer , do you know when this problem will retablished on Poloniex please ?