I have a legacy account since 2013 and after hearing about them having legacy account owners to upgrade to verified with documents, I have been withdrawing around $2k in ETH each day. So far everything has been going through.

For the IP ban, few months ago they gave me a 24 hours IP ban because I was logging in from different devices in different location.

I'm still going to use Poloniex and get my documents in. Hopefully everything will be resolved for you. Good luck.