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.