Login to your umobile account apply the ucard it takes about 1-2 weeks then they will send u an orange card, activate the card at umobile website or umobile app. After activated, every time u pay ur bills it will transfer points to ur account. Then can use the point to redeem item like starbuck or chatime. If not enough points for starbuck, can use that card get discount. For lazada, after finished the payment try to scroll down, there should be a section for u to fill in ur card number.