Whats Up With Cajon Pass

Im new and i wanted to buy the Cajon Pass addon for TS2021 but when i go on steam to buy it it says Error.
Can someone explain why i cant buy the cajon pass.
Because i really wanted it.

 

I believe Cajon pass is only available to US customers due to licensing. If you are outside the US, it isn't available (region locked).

 

But it looks like there are no bnsf branded trains there so that doesnt make sence

 

But it has an ATSF F7 included, and ATSF is part of BNSF

 

Yes, Cajon pass includes a Union Pacific and BNSF ES44AC in addition to a unbranded pitch black colored ES44 as well.

 

I found a valid steam key on Amazon for €11.99. It worked.

 

I think you can also get Cajon Pass from one of the very early editions of TS, 2012 or 2013. You can usually find these just by looking them up on google for purchase. I am in the EU and I got my copy from one of the bundles. I think it was the 2013 one? Good luck!