i just totally completed a sm survey about sportswear and instead of getting the congrats page i could a plain white thank you page with the following message:

thank you for completing our survey. your responses have been received and your survey is now complete (or words to that effect) and of course it will not credit. oh well, u win some u lose some. guess i can try again later for a sm survey. just wanted to give everyone the heads up about this survey. good luck everyone in getting your surveys today.