Broken Screen

Hello Authorized,

I just bought a Iphone 12. It is my first apple device. So this is my first experience about The Apple.

I bought this device almost 10 days ago. I set an alarm and when the time was come my phone started vibrating and It fell off my little coffee table to the floor. (20-30cm height). And the screen of my device is broken. This phone is not cheap and it has very powerful screen (you are saying this) but it is broken now. My first impressions are not so good about this issue. This screen is not powerful. I can send a picture of my table if you want. It is very small. How it can be broken, I couldn't understand.

What should I do now? How can you support me about this issue?