Steps:
- Download the free Swych app on your activated mobile phone
- Register w/ a valid U.S. phone number in service (Google Voice, SIP, etc. numbers not supported)
- Verify your number using the activation code provided via text from Swych
- Complete account creation w/ your name, email address and desired password
- Search for Playstation Store and select the $10 denomination card
- Apply promo code PSN4
- Total will be $6