Yeah I see what you guys mean now- the issue is c-cex has a hardcoded .002 btc fee associated with the withdrawal fee for the symbol BTC in the ledger.
Just like the hardcoded .1 BBP fee for withdrawing BBP.  So its $17 for withdrawing BTC, and 07 cents to withdraw BBP.

Anyway, I can assure you they didnt do this deliberately for highway robbery, it was probably set a long time ago when the pair was entered into their system and they just never changed the withdraw fee.

Why dont you open a ticket with c-cex, and ask them if they will lower it to .0002?  Tell them its outrageous.