You can. To do this, withdraw the reward to your Tron wallet. Go to the 'Rewards System' section. Under the 'My income' block, click the 'Withdraw' button, enter the withdrawal amount and the wallet address. Then go to 888STARZ.bet in the “Deposit” section, select the Theater TRC-20 deposit method and enter the desired deposit amount. Thus, the money will go to the main balance of your account. Done! Now you can place reward bets.