STEPS:

1.) Login to the Gmail.

2.) Go Here: store.google.com/?hl=en-US

3.) Scroll down to “Get news, offers…” or wait until the $10 window pops up.

4.) Click Sign Up

Use different Gmail accounts, you can get a lot of Chromecast’s for really cheap which is $10-$15+ profit per order

Scroll to the bottom and change the language to US English for non-US residents