Don't know if my phone was the problem or does the app has a problem when you're about to checkout your orders?! It won't let you select your payment method and not even giving you an option to add a free shipping voucher even if you have a list of vouchers to select on. Tried to reinstall to latest version of app but still having the same problem, "Selecting a payment method would just flash on screen and then a blank white screen on!" Nothing to select on! Shopee fixed this problem!