I can tell you I've opened 3 different accounts and all three have been hacked away. Anyone making any real money will loose their accounts. There is only one way to change emails once the account is set up and it is internal. All three times my email changed and then payout address changed and then I was completely locked out. Good luck calling the number on the site. It's a recording and emailing support@hashocean is a joke. You will get a response days later with a simple one sentence response. My last episode was May 12, 2016 lost over $20,000.00 within three accounts. first two accounts were lost April 28th 2016.