Hello, i want to buy the physical and digital for of the player's handbook 2024. I went to the cart and when i asked me about the information i couldnt change the Country , it had only united states is this a bug or is something else ? 

No, it's not a bug. The marketplace currently only offers digital + physical bundles in the US

Below the Add to Cart button you'll see some text that says "Products shipping outside the US, checkout on our partner site" Click that link to find your regional store (if there is one, depending on your country)

thanks and if i buy it from the partner site digital + physical forms , it will give somethinmg like a code for the degital so i can have it in d&d beyond ?

I believe so, something that'll let you have the digital and physical versions