Just know that you can get scammed by reversals after hours of work they will have a reason to not pay you. If you like doing labor work for free then this is the site for you to give away free opinions or information to criminals that don't deserve it. Who knows where that reversal is going back to because apparently it's frequently happening to people on this website. Its impossible to contact these providers they never respond back and knowing we've been scammed after hours of work this is the worst feeling to have. AVOID, just save yourself the headache & don't waste your time with GG2U reversals.
Sorry that you had a negative experience with some surveys being reversed by a couple of the survey providers. You would need to contact the survey providers directly for more information about why the specific research companies paying to conduct the survey research did not wind up fully accepting your survey responses. In general, though, people should avoid rushing through surveys without reading the questions carefully and providing thoughtful responses.