Restrict credit amount limit

[sunnyk56]

Hi,
I am trying to limits the faucet because a user can take all the tokens via one call. How can restrict users to call many times call this command for the same account in a day or some hours?

I am trying to limits the faucet using the flag credit-amount=100,000,000 -max-credit=200,000,000
if I try for 200,000,001 goes fail but when trying call request 2,000,000,000 it goes successful.

faucet -cli-name=gravity -keyring-backend=test -mnemonic="lstate lady near aware season unique crew clever easy gasp often average galaxy athlete silly rail strike peanut sign gain slight" credit-amount=100000000 -max-credit=200000000