For USD $1 there will be a locking period of 10 business days. It means you have invested the money on 3rd January 2016 which is a Sunday, therefore this is not a business day - no trading activity can be performed on this day. Your interest accumulation cycle starts from 4th January 2016, which is Monday . 10 Business Days ends on 15th January 2016. PayME credits you on 16th of January 2016. In case of non-trading days your payout cycle may increase as PayME will only count the trading days.
Return USD$ will be 100% equal to USD $2. This money will be credited to your account Tax-Free! PayME accepts Paypal, Neteller, Skrill payments, withdrawal will be on the same account.