I a sorry for your sad situation, I wish you well my dear steemian!
I've recently registered an account on poloniex, and have never used the platform before... Have you ever used the trading platform before and managed to transfers, trade and deposit values?
This is my first time to use the platform ever. I just learned how to transfer my SBD to Poloniex earlier today. And then this happened.
Sorry to hear this man!
Til now I've always used BlockTrades, the platform that my STEEM account linkes too. This one has always worked, but the only drawback is that it charges a lot in fees I think... according to research, I believe that BlockTrades charges between 3-4% in fees which is a lot if you think about higher deposit/withdrawal numbers...
Let me know if you suddenly was going to receive your SDB on Poloniex. Maybe transaction time is VERY delayed.
BTW... created a post on your behalf, and I gave you a shout out! You might want to check if out.
https://steemit.com/steem/@johnasp96/did-you-get-a-shock-first-time-converting-btc-to-steem-on-blocktrades