User blog comment:Adamoyan/So Close, Yet So Far.../@comment-25255992-20160511203017/@comment-27962837-20160512162134

The reset ad-id works to a certain extent. The game won't allow you to watch more than 20 ads for gold per day, no matter what your advertising id is (or at least, this is my case), so it might be that you can collect those 20 in one sit without a reset (I only get 6-7 without resetting each time), and that's why you can't get more.