Stem as hard a thorn in the package

Hi. I purchased frozen mix veg from nature's garden. While eating I swallowed a stem that was shaped and felt exactly like thorn. Poked my throat was very painful. I had to put my hands down my throat and was gagging and managed to get it out. This is unacceptable and rediculous. I will never purchase from them again. I prepare food for my kids and this could've happened to them. They state 62 quality checks on their products and this is the outcome. I hope they see this and monitor their workers more.