I ordered this on March 17 and after I got it, it's been fine. However, today, Friday June 19, it simply stopped working for me. I've used it for less than 3 months. I even kept the charging cable connected to either mouse or keyboard, it shows lights but it simply doesn't work. Perhaps it's the USB receiver that stopped working. Either way, it's just frustrating that it stopped working in the middle of work. How do I get my money back? Can I get a return box with stamp so that I can return this and get my money back?