Note: Your account can't be older than 3 days, and you must have played at least 3 hands in order for the code to work.
Follow these, step by step.
1. Download Zynga Texas HoldEm Poker on your Android/iOS device.
2. Login with Facebook or any other type of account. (Guest/Zynga account)
3. Click on the Settings Icon and then select REDEEM.
4. Copy and paste the code, or just type it in.