Nobody can help you here except poloniex exchange where you have lost your fund. In these cases, the binance is the best, Once I sent my xlm coin with the wrong memo, after contacting the support team, my xlm was sent back to my wallet. I hope that you will get your funds, but try to use binance exchange their team helps you in case of any problem.
My priority is always binance, but I prefer poloniex for zchash transactions. I have transacted on my offline wallet to poloniex But yes, they are really incredibly bad at support. The reason I raise the subject is just to inform people.