Can i buy in the US Store from another country?

Hi, i wanted to buy Forza Horizon 3 in the Windows store. In the US store it’s about 60-80-100U$D (Depending on which bundle you buy). But when i tray to buy one, it ask me for a US billing address, and i think i can’t fake it, because my credit card it’s from Argentina. And i can only buy the cheaper bundle (The 60U$D one) for 1800$AR which is 120$.
This means that they only sell me the 60U$D bundle for 120U$D.
Is there a way to buy it for the original price? Like if i buy psn cards for the PS store?

Can i bump?

I also wonder if this is possible? Forza Motorsport 7 is 59.99 dollar in US store and 81 dollar in the Norwegian Windows Store.