Im screwed

Yesterday i was cleaning a clients house. I was cleaning a stovetop of a expensive brand call wolf. It was made out of porcelain. Anyways it was badly solid so i googled solutions. baking soda with water make into paste. I left it on like i said say scrubbed it with a rag. How there is scratch marks around it. So now its damaged. It could cost me upto ten thousands dollars. 😔😭