Holy shit, you're so stupid.
An error occurred. It was corrected according to clearly stated House Rules (
https://www.5dimes.eu/sb_rules.html) and according to basic economic logic.
You're only argument is that if OP's bet on the Astros had won, that 5Dimes would not have honored that bet, *even though their rules say they would have honored it.*
So, the only way you can be right is if 5Dimes has a history of breaking its own clearly stated rules on this issue. Now the burden is on you to evidence a history of 5Dimes breaking its own rules on balances and re-grading. If you can't do that, then STFU.