I cannot find my Xiaomi Mi LED Smart Bulbs White And Color on Amazon Alexa

Hello, I’m from Italy and using my italian amazon and alexa accounts. I bought two Xiaomi Mi LED Smart Bulbs (White And Color) and I cannot find the bulbs on amazon alexa. I have downloaded both of the skills (Xiaomi Home and Yeelight), then I clicked to discover devices but it cannot find my devices on the list after 45 seconds of waiting. Can you help me? Otherwise I will return the bulbs this week.

My yeelight mi id is 6369002812