Bests & Worsts Reviews from Amazon

I purchased this keyboard/mouse combo about 4 months ago. I am usually fond of Logitech items, as they are easy to use and are made well. Around 2 weeks ago, the mouse started to malfunction. Every time I would click once, it would double click. I thought the best remedy would be to contact Logitech support and start a warranty claim. The rep was nice, and he offered to send out another mouse as long as I can email him an invoice. I emailed him the invoice from Amazon and they replied back that any items purchased from Amazon Marketplace would not be eligible for any sort or warranty. Nowhere in the warranty papers that were included in the box did it say that the warranty would not cover Amazon Marketplace purchases, nor did it say that anywhere on their website. When I emailed Logitech with their warranty information that was included with the purchase, they just stopped replying to my emails. My suggestion is to purchase a different brand keyboard/mouse, as if something will happen to your keyboard/mouse, Logitech will find all sorts of excuses not to warranty their item.