Good advice @neverxpected ! Although I believe a lot of time these extremely high fees are a byproduct of the coin price going up in a massive surge and the exchange not prioritizing the recaliberation of the withdrawal price to match the real time value.
HitBTC is famous for it, and they did the same to DENT... by the time they finally lowered the fee, DENT had surged again heaps and we were back to the same problem. :p