They have option for withdrawal, just mention your account and you are done.
did you used epay personally?
epay doesn't suppert bitcoin directly for payment, epay pays via bank account.. we need to get some exchanger's help to convert epay balance to bitcoin.
and OP is asking about some legit exchanger.
Are you talking about epay.info??
If yes, then go to "my account" and set a minimum amount to withdraw and mention your BTC account.
But if you are talking about any other epay, then I can't help.
what's epay.info, does it work like epay.com or payza, paypal? also a payment processor? oh, so many epay
Epay.info is an gaming faucet script and faucet list site, a samilar to faucetbox.com, and xapo.com. we can use it to claim various faucets and get paid through epay.info account. just take a look at epay.info for know more about epay.info.. epay.com is very deferrent than epay.info.