i wrote a letter to dispute logitech decision to make my rebate invalid. The reason for making it invalid is: Missing original UPC. But what LOGITECH did not know is I xeroxed all the original documents, the original UPC, receipt and application for rebate that Office Depot gave to me when I bought the 2 LOGITECH Webcam. I wrote LOGITECH a letter of complaint regarding this. After 3 weeks that they received my letter of complaint, I again received a notice in my email and now it has a different reason for being INVALID. The reason this time is: We did not receive a rebate certificate with your request. I will again write a letter of complaint on this. I really do not know what the next reason this Company will tell me just not to process my rebate. This is just a $40 rebate but the thing here is that you follow all there instructions so they can process your rebate. But unfortunately I think this is just a scam and coming from a Company like LOGITECH is so frustrating.