It seems like you don't need advice but you realize this is a terrible situation.

There are so many exchanges nowadays that you can easily use a different platform.
On top of that, it will be overall beneficial for everyone if people stay away from bad exchanges.
Although you can't convince everyone, at least you can stop using it.

I would definitely move your coins somewhere else as soon as you can.
Nowadays, the best exchanges don't even deal with FIAT, like kucoin or binance.
Also, decentralized exchanges are also generally terrific.

Just be careful not to move your coins from a shit exchange to another shit exchange.
And, ironically, the ones that used to dominate, poloniex and hitbtc, are currently the shittiest of them all.