⭐ Merited by dzungmobile (1)
I check around and some websites don't list withdrawal fee in BTC too expensive like OP said.
Obviously, the services you checked do not have accurate data.
I am simulating the withdrawal process on my Poloniex account and this is how it looks.
Required amount 0.01, Receive Amount 0.0065 BTC, so fee is 0.0035
