Step 1: Go to the Deal Purchases page in your ShopBack app and hit the "Use Now" button. 

 Step 2: Copy & Paste your Serial No. and Verification No. onto your Notepad. 

Step 3: Go to your Q account > Gift Card section in Qoo10. 

Step 4: Paste the 2 codes (Serial No. and Verification No.) in Qoo10.