Bests & Worsts Reviews from Amazon

The first bottle worked really well for our family (purchased in June 2017) so I reordered it in Dec 2017. Well, when we started to run low on the first bottle, and then started using the second bottle, we noticed that whomever used the pills from the second bottle weren't getting any relief! It was a horrible realization. So I looked at the expiration dates. The first bottle expired in 2020. The second bottle had another sticker added on top of the expiration date that said "new product." When I peeled off the "new product" sticker, the expiration date was 2019. Not technically expired but it makes me suspicious that the expiration date was covered with another sticker that doesn't appear to have a legitimate purpose. I cut the pills open and they still had a scent (not strong but you could still smell some oregano). I'm wondering if these were exposed to heat or something to reduce their effectiveness? I'm providing details in case the other people who have had problems were reviewing products from the same batch. Either way, it stinks, because now I have to find another provider!!