• Click on the Select Payment drop-down in the buy pop up window.
  
  
  
  
  
• To add a new payment method, select Enter New Card.
  
  
  

• Fill in your credit card information.

  
  

• Tap Save Changes.

To remove your payment method on Zynga Store, please follow the steps below:

• Click on the Select Payment drop-down in the buy pop up window.

  

• Select the option Delete Card.
  
  
  

• Tick the Delete Card checkbox, then select Save Changes.