The steps to redeem Point Blank vouchers are as follows:

1. Select merchandise and make a purchase
2. Make payment for your order
3. Wait until the seller sends the voucher code
4. Login to Point Blank Website
5. Go to Topup Center
6. Select option "Point Blank Voucher"
7. Enter the voucher code in the space provided
8. Click the "Proceed to Payment" button
9. If the PB Cash has been filled, click the Done button on itemku

For more details, see the image below: