My AirPod is showing not covered
I tried to use my AirPods but couldn’t and it is saying AirPod not covered. I have bought it from an apple retailer in Lisbon in 2021 and I was not informed about this coverage thing. I thought I have the right to use an AirPod that I bought for around 100€. Can you please help me fix this. Thanks in advance
iPhone 12, iOS 16