This rule of yours is completely flawed.
This is a standard universal rule that is used by most Sportbooks.
I understand that it went against your favor in this case and I'm sorry about that, but the most important thing is that this rule is clearly stated on our website and we follow it consistently regardless of the bet result.
It could just as well go in your favor the next time around.
Please note that for this match we did also voided all bets on the player who retired.