What do you mean it is too much? Is there any exact times of claiming that can related into banning out account? I believe that if they have time to do it manually that means they will claim it of course. Last time if I still got time, I can make up to 12-16 hours per day which is pretty high too but there is nothing happened with my account. So may be you can give us some regulations on claiming amount per day
Giving regulations would be the same as giving instructions to the botters as how to avoid detection. It's not as simple as the number of times in a day, a few people are being blocked because they match the same pattern a very large botnet was using.
But how can you remove those detection if there is a solving captcha which will counter the bot? I believe this is pretty good enough whenever you want to use bot because it prevents them for stealing the faucet mode but how can it still be abused if you already put protection? So you mean that to avoid this, you just blocked them like that? And later you will processed their account by asking them to make a deposit to make sure they are for real?