Not doing anything yet. In fact, not sure if I should do anything only considering this case (Only one so far. I hope I did not miss if there are anymore accusations that are serious). But I would like to hear a response from BetBTC about the term changes thing.
As I read the change in terms has been made from 20 minutes to 30 minutes. @BetBTC have you sent any notifications to all of your users to agree on the new terms?
If not then cancelling the bet after 25 minutes is wrong from your side. Your clients were not informed so when they signed up they agreed on 20 minutes not 30 minutes.And considering this, cancelling the bet after 25 minutes instead of within 20 minutes is not helping you in this case although the current term is 30 minutes.