If your bet is duplicated please read this :
There is currently a problem in the Bitcoin network where duplicated conflicted transactions are being broadcasted.
You send your bet once but it appears as if it was sent twice.
You will notice that one of the transactions will confirm by the Bitcoin network normally and the other one will be canceled.
Simply ignore the duplicated canceled transaction. It will never confirm by the Bitcoin network and no funds will be deducted from your wallet for it. Consequently no payout will be issued for the duplicated canceled bet transfer.
If your wallet was charged twice please contact your wallet provider and they will reverse the duplicated charge for you.
We recommend using the official Bitcoin clients to avoid these problems.
Under some circumstances it is possible that your bet will initially confirm, but the bet transfer will later fail to confirm in the Bitcoin network. Shortly afterwards, a new transaction will be created and broadcasted for your bet with a new transaction ID. If that happens your first bet will be voided (since we will never receive it) and a new bet will be processed normally for the second bet transfer.
Thanks for the warning DirectBet, I'm normally aware that these things are going to happen. This is the first time I had no idea we were to be under another stress/spam attack.
Thanks for making us aware.