This is the one that doesn't work with terrawallet. I showed as won and then no payout...
Terrawallet is a bit of a misnomer as you don't get a wallet instead you get an account in a wallet. The site owner owns the wallet. The wallet can contain many accounts. Each account will have it's own address. When coins are sent to an address it will be credited to the account which owns the address. If the address isn't assigned to an account it will be credited to account "", in other words account null. When you use a service like satoshiroulette, where winning are sent back automatically, it is done so by scouring raw transactions to find an address to send the winnings to. Most of the time the address that will be found will correspond to the correct wallet but it will not have an account assigned to it. So the winning will be credited to account null. To use a services that automatically sends back transactions you need to own the actual wallet.
Get the txid and send it to the admin so they can manually check that you sent the coins. With that they should be able to credit your account as I'm quite positive the coins are in the wallet but not in the correct account.