Step 1: Click on the Activation URL, make sure you have installed Grab app and logged in.
Step 2: Click "Pick Your Gift", then proceed with saving the e-voucher to your My Rewards page.
Step 3: Choose a service and pick a gift breakdown you prefer (if applicable).
Step 4: The e-voucher has been redeemed. Click "View My Rewards".
Step 5: Go through the booking steps and click "Offer" to use your voucher.