You shouldn't be claiming that you have a "faucet" if it is just for purpose of testing the game! Some fun coins would be enough for this.
What is Faucet?
The Faucet feature allows you get some amount of cryptocurrency to play with for FREE. The purpose of the Faucet is to test the game with zero risk prior to depositing.
After reaching the minimum withdrawal amount, you can send a withdrawal request.
Not entirely accurate, at least according to your Terms & Conditions:
10.4 Deposit lacking amount for Withdrawal after Faucet win will be counted as an abuse and can be subject to an account ban and funds confiscation.
In my understanding, you are not actually allowing withdrawals from a faucet wins unless they are preceded by a deposit.
It means if faucet amount is 0.0007 BTC and you win 0.0002 BTC through faucet, you are not allowed to deposit 0.0002 BTC to reach the minimum withdrawal amount.
You must play until you reach the minimum withdrawal amount.
Please make it clear that we need to deposit first before we can withdraw the faucet winnings since we may be accused of abusing your site. Though it is good that you have that rule to avoid abuse but some users are not reading the terms and condition and may withdraw the winnings from faucet and they maybe accused without knowing that it is not allowed. I think it is better just dont allow them to withdraw without depositing anything rather than confiscating winning from faucet.
Users can send withdrawal requests without depositing, just please do not create more than 1 account.
And please read the terms and conditions before starting.