#2. We have had submissions from 11:30AM, legit and verified. Then, around 10-11PM the same submission came in again which are duplicates from 11:30AM. This is just an example, the time varies. How can we prevent this?*
*We tried recaptcha (not so user friendly though when the image selection pops up, are there easier alternatives? Maybe a required checkbox widget which clears upon submission or refresh?) The recaptcha seems to work in preventing the time-travelling orders. But it won't prevent the issue #1.