Adding on to what Mandi said....

Daily Opinion Surveys taken on Friday, Saturday, and Sunday will credit at one of those times on the following business day. Usually on Monday, unless that's a holiday.

After you get that congratulations screen, it's a really good idea to go through as though you want to take a survey again...after you click on the Greenfield logo with Benjamin Franklin on it, it should not give you options (the "I have rheumatoid arthritis, I have a pet, I know my ABCs" sorts of questions) OR it should say something like "you exceeded your daily limit". Seeing one of those things means that you will *almost* for sure get credit for it (though floopy things happen, and sometimes a finished survey won't credit for whatever reason, and it's sad but we have to just move on to the next day). If it gives you options to take a survey, it very likely means that the one you just took did NOT go through, and you might as well take another. Again, sad, but part of what ya gotta do!

I highly recommend this thread to learn about the various surveys we are all taking. Don't ever mention the name of the company, and don't be specific about the products, either.

And there's always a "this month" survey thread, which can help you keep track of what you did!