I have Neoscoins on Bittrex and Bittrex is removing the Neoscoin wallet in a couple of weeks. I am not sure what to do.
You can download a Donu wallet and withdraw from Neos to Donu. Bittrex kindly upgraded their wallet to operate on the Donu chain, just without the name change. If you need help with this, please let us know and we'll gladly work through it with you. You can also open up a support ticket at
https://www.donu.support