What I understand on the case of under 18.5 was the bet is already lose regardless if the game still continues or not while in your case, there’s a chance that you can still lose your bet if the player didn’t retired earlier since the retired player has a chance to score more and close the gap to erase your margin.
If I'm not wrong this is the rule being applied to the OP's issue.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.ibb.co%2FXbkcD1D%2Fimage.png&t=643&c=Rli6a9pACgyu2Q)
This can be found on their general terms and condition under their general betting rules.
Here's the link for that General Terms and Conditions
For OP, I agree to what Gianluca95 has said, better to bring it up to their thread not create another thread on this section.