Why does the actual box state there are 3 doses but has a sticker that was added saying there are 6 doses? I ordered 6 doses, but this makes me wonder if there is an issue with the product's authenticity or quality. It's very concerning for my dogs' health. Also, the product is now being shipped from Singapore. It used to be shipped from the UK. I've left reviews on the website, but they never seem to show up on the website.