Where to begin. I ordered a chemical through Amazon to clean water spots on my shower glass. I opened the product and attempted to used it only to find hard rock like substances in it. I almost scratched my glass. Luckily I was able to catch it in advance. After contacting customer service. They advised me a return label was in the mail. 2 weeks went by and nothing. I attempted contacting them multiple times only to be ignored. It's not the money but the principal. I took it upon myself to ship it back. We'll see how this now plays out. I'll be opening disputes wherever I need to more importantly sharing my experience with others. I'll never do business with this company again.