Can we somehow set the ticket to be accepted even if the odds change during the bet delay period?

Yes, when you are sending tickets to us, you can flag their auto acceptance in the accept_odds_change field:

• Any: Any change to the odds during the acceptance process (bet delay) will be accepted.
• Higher: Only the change to the higher odds will be accepted.
• None: If the odds have changed during the acceptance process, the ticket will be rejected.