Only tested on Skillshare.
Step 1: Generate at http://namso-gen.com/
Step 2: Connect VPN to USA
Step 3: Visit Skillshare or click here: https://www.skillshare.com/r/user/skillsharer
Step 4: Fill in details
Step 5: Rinse and repeat every 2 months.
P.S Signing in through my referral link gives you 2 months trial.