To redeem voucher code through the PS Store, follow these steps:

• Navigate to the  (PlayStation Network), choose  (PlayStation Store) and press the  button.

After the PlayStation Store loads, you will see “Redeem Codes” at the bottom of the main menu on the left-hand side of the screen.

• Navigate to “Redeem Codes” by pressing down on the D-pad of the DUALSHOCK 3 Controller, and then press the  button to show the Redeem Codes field.

• Press the  button again to display the on-screen keyboard.
• Then, enter the 12 digit code exactly as it is written on the voucher by using the D-pad to select the letter or number followed by the  button to enter it.

• Once the code is entered correctly, press the “Start” button on your controller to submit it.

After the code is submitted, you will receive a confirmation.

Watch this video understand it better:

If you still face any issue or have any doubt, please leave a comment below.