Bests & Worsts Reviews from Amazon

I've been ignoring the little black specks anytime I've gotten this brand of Tahini, but it seems like the problem is getting worse. If you happen to bite into one, it is like sand or very tiny rocks or plastic - I though they may just be burned sesame seeds (still not a good thing), but something is very wrong here. **UPDATE** I poured the Tahini through a strainer and added more photos of what was inside - DISGUSTING!! Not sure what to do about this or how to bring this to the attention of someone who can do something (this is not safe for others to consume!!)