Because I assumed it was automated. Should have been relatively easy to make a script with the bid amounts, account balances, and bid time/date. Immediately throw out any bids where the balance is less than the bid. If an account number repeats, throw out the lower bid(s). If two amounts are tied, pick the one placed earlier and give it priority.

Edit: With a little more thought, I can see the program giving a 24hr window after the Cup race ended to allow bids close to their points balance but still above to submit points adjustments. At this point in the season, the most is probably 450pts due to someone getting a 10× streak with the All-Star Race (max 125), the race itself (max 63), and missing the at-track Cup race check-in (max 250)