Detailed Instructions: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Problem:BUYER BEWARE. You receive 20 loose batteries made in China in a plastic bag. NOT the packaged batteries shown in the listing. No way to know if you are buying real Duracell batteries or inferior Chinese knockoffs. And even worse, if you decide you don't want to take the risk, you CAN'T return them. For a few cents a battery, save yourself the aggravation and buy from a reputable source.
Solution:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
And even worse, if you decide you don't want to take ...