Let's ignore the above, why didn't you report the bug to housebets.io? Didn't you think it is risky to continue playing on a casino that has such a critical bug?
Dude, the bug helps him get back 0.02 USD when OP is losing, it's not a lot of money but considering that you can exploit it to your benefit, why report it? We all know why OP haven't reported the bug, don't be naive. Also, it's a critical bug only to the casino not to the player so OP will continue to play.