My steem depo from before HF19 seems to be lost of frozen. What they are doing is manipulation of price. Their trading bots and sell walls making people panic sell so they can earn some huge $$$ on the rise. Fake corrections every single week.
Bittrex is much better if I have to pay fees already. But p/d scammers are gaining some influence on low volume coins there too.
What happened to ShapeShift? We should have a single Steem/SBD to BTC and ETH exchange.
Keep sending support tickets and hopefully they will eventually do something. There have always been questions of shady practices with price manipulation there (and on other exchanges) - it can't be prevented completely and we can't know for sure if they are colluding in them.