Hello i was doing logitech se for sometime and i have messaged with him few messages and he reply me very hard, idk to write to him please help me. Dear Mr. XXX From this page Gregory, welcome again and thank you for the reply. I assume that all the previously sent instructions have been checked by you, this is necessary to confirm the defect of the device. If a fault is confirmed, the following is a full warranty procedure: This product is new, so I suggest you submit a complaint at the place of purchase to check whether the product can be exchanged on site or shipped by the shop. If you are unable to advertise the product at your dealer or purchase directly from Logitech, please contact our authorized service center in Poland - FixIT to send the equipment for further diagnostics. Service data: Website address: fixit(dot)pl, to make an electronic claim. Email address: (for this address please send any inquiry about the complaint) For a detailed description of the procedure, see the PDF document entitled: "" "" (please see all details carefully). A link with a detailed description of the procedure is available only after creating an account and logging in to our website rma. fixit .pl. After logging in, please click on the "" Instructions "" at the top and then select the document "" "". When reporting a bug, please provide a detailed description of the problem and the steps taken to address the problem. Currently, you can advertise your device in two ways: - send your own cost shipment via any carrier - deliver the device ordered by FixIT Service. As for the second option, ie delivery to the service at the cost of the company FixIT through a courier company, you can use it After registering on the site and reporting a bug. The courier will receive your shipment within the next 24-48 business hours from the time the service was approved by FixIT. Best wishes Grzegorz Logitech Customer Care