我寫這封信是為了告訴你，我最近購買了New Diet Pill，他不但

我寫這封信是為了告訴你，我最近購買了New Diet Pill，他不但沒有成功讓我減肥，反而讓我增加了5公斤，我希望解決這個問題，因為我花了很多錢購買你們的產品，希望可以得到你們的回覆!

結果 (英文) 1:

I am writing to tell you that I recently purchased a New Diet Pill, he not only did not succeed to make me lose weight, but let me increase of 5 kg, I hope to solve this problem, because I spend a lot of money to buy your products , hoping to get your reply!

結果 (英文) 2:

I am writing to tell you that I recently purchased New Diet Pill, and instead of successfully letting me lose weight, i gained 5 kg, I hope to solve this problem, because I spent a lot of money to buy your products, I hope to get your reply!

結果 (英文) 3:

I am writing this letter to tell you that I recently bought new die hill, which not only failed to let me lose weight, but also increased my weight by 5 kg. I hope to solve this problem, because I spent a lot of money on your products, and I hope to get your reply!