They wrote earlier to inform of an adjustment on my account. On logging in, my balance now reflects the bet being settled as a winner. In essence, their response is through that action rather than an answer to my query on the rule behind voiding on such a scenario. Sorry I can't provide anything further but I think it's raised an issue I, and maybe others, might not have thought about with action bets.
Again, thank you to everyone who contributed to the discussion.
Again, thank you to everyone who contributed to the discussion.