Thanks for that free 100 satoshi however it seem you have pop up ads which open whenever sombody try to enter email or bitcoin address in input field which is a really bad practice everybody hates pop ups. You better remove them, however reward amount for 30 minute per claim is good.
I do not use pop up in the reward button use the modal, dond opens a new dialog where the real reward button , use it as a protection from bots , hope you understand the reasons Thank you . regards