all the way to the end of a survey on movies, click and expect to see the completion page, nope get this:

It's not you, it's us.
We are sorry,
an error has occurred with the survey loading.
Please try again later.

One more survey I spent the time to do an get nothing for my efforts. Since the first of the year well over 200 surveys that I have completed and got nothing. Either don't credit to get "sorry..." at the end.