That said, that broken English description should have been a real warning flag for you
Unless they are a credible company, the description usually falls short with mom & pop or just plain old rip-off artists.
I'm going back to school for Digital Marketing. That also incorporates Copyrighting. This is a form of Copyrighting (Descriptions, Warnings, etc.)
When a company does it themselves they usually try to cut corners from paying professionals. Typos are the main thing to look for because that tells you that the person selling the item is more than likely the person who typed that information. Errors are a No-no because you are paid fairly well. A professional takes pay cuts but don't make the smallest errors and they go unnoticed. Whenever I'm reading a TOA, White Page, Warning label, or description of anything (and see Typos), I look at the product again and then read reviews. There is no such thing as, oh, I don't make mistakes, or I as a professional doesn't use a spellchecker locked in on my desktop when I'm working. I also do content marketing on the side. This is all part of the game. Do your research when purchasing items of any magnitude. DIY items are normally going to have typos cause it's a person running his/her business from the ground up (I overlook it in this case).
and there goes my 2 cents...lol