1. you can try download the VPN Apps example (TunnelBear)
2. Choose USA Country
3. Connect to the VPN
4. Go to this link https://gaming.youtube.com/c/TeamGosu/liveSponser
5. Find the $ logo,and you can use credit card or paypal
6. For ZIP postal code you can insert 10001 ( New york City) or any USA POSTAL Address
Caution : using VPN mean your data are being transferred through other person server. Be cautious!