Your website is nice and easy to navigate, I observed that your USD bank card withdrawal fee is 3.9% + $9.99...
Is that not too high?

Yes you are right the website is good and it is support with android device too, and the fees USD bank card withdrawal. I think it is the rules of bank its self and not from bitport.net. I am doubt they have control about the fees.
Because almost all of the markets apply the fees withdrawal about 3.9% + $9.99. but for the valid informations, we must wait the answers from the OP.