Hi Suzanna, usually misrepresentation can be due to numerous issues. Typically it could be due to insufficient, incorrect or invalid business information and product information provided to Google. Google wants to have confidence that merchants and their products are legit before allowing products to be listed on Google Shopping.
After you provide the essential information, and request for a second review, the account will be reinstated. Here is a video where I go into the details and how to resolve it: https://www.youtube.com/watch?v=YVx8GNFhuHU
Hope it helps!