This has proved to be aggravating, no doubt about it. I don't know how difficult it would be to program the survey in such a way that it detects its quota number being reached
while surveys are still in progress. I took programming classes for fun after I earned my bachelor's degree. While I didn't choose that as my career direction {my career chose me} I can't begin to tell you how glad I was to have taken those courses.
However, each survey provider has their own way of doing things. The more you do the surveys the more likely you'll detect the differences. Case in point, is the Qualtrics survey I took today that DQ'd me after I completed this very long survey. Yes, I growled, not just because I lost the credit for my time but because I really want my answers to count on this topic involving current events following the Nov. 8 election.
Since it DQ'd me ("Quota Exceeded" was not the screen used) I know they have my answers. At least I am assuming that. But, Qualtrics is one of those companies that offers FusionCash members a Long DQ bonus. I AM glad they do this. If it were a case of quota filled (you ought to get a message as the survey progresses ... and some surveys do {opinionetwork comes to mind}), but this 'old-but-updated' standard survey being used may be written using a "DQ" screen at the end {instead of "Quota Exceeded"), even if you are one of the qualified participants of the demographic. This may sound confusing, but my point is I wanted my answers to count
more than I actually wanted the survey payment -- on this particular survey.
Bottom line is I am pleased to be doing Qualtrics surveys overall. Check 'em out on the internet (from Wikipedia): In 2016, Qualtrics was ranked #12 on the Forbes Cloud 100 list.