Hi Ivica, 1. All the keys we provide are original and are activated online through Microsoft’s official platform. While phone activation is still a valid method supported by Microsoft, it is often misused by other sellers who distribute keys that have been resold multiple times and only work via phone activation. At GGKeys, we do not offer such keys. If a product does require phone activation, this will be clearly stated in both the product description and the notice section. 2. Yes, the key is permanent – it’s a one-time purchase for use on a single device. Let us know if you need any further clarification – connect on our live chat. Best Regards