What is the number range for boths tails and heads? I have just tested with the test balance, all bets on tails are lose. All numbers is a lose if I bet on tails.
Seems that this site has the same bug with bitcoinflips, where players has no chance to win when they pick on tails.
2016-11-23 12:07:20 77.0000 -77.0000 6802 Loss Seeds
2016-11-23 12:07:14 77.0000 -77.0000 4427 Loss Seeds
2016-11-23 12:07:09 77.0000 -77.0000 0 Loss Seeds
2016-11-23 12:07:03 77.0000 -77.0000 724 Loss Seeds
2016-11-23 12:06:58 77.0000 -77.0000 6384 Loss Seeds
2016-11-23 12:06:02 77.0000 -77.0000 8463 Loss Seeds
2016-11-23 12:05:57 77.0000 -77.0000 7917 Loss Seeds
2016-11-23 12:05:51 77.0000 -77.0000 9577 Loss Seeds
Didn't you notice it? Please take a look at this bug and please deactivate the deposit to avoid players losing their money because of this bug.
So do you even try to place some bet on heads? Because if you said your bet on tails keep on losing that means you will win if you keep betting on heads right? Unless this site is rigged and make all of your bet is losing only some wins