International roaming in Malaysia is a nightmare. It only able connects to Celcom network. It shows 4G connection but when you get or try to make a phone call, it drops to G connection or worst case disconnected from the network. Need to keep trying to make call like 1 out of 10 times you will be able to get it. There's an automated voice prompt saying "to connect your call, pls press auch number", if you don't press that number and it will disconnect your call. It's a nightmare experience. Plus you can't login to the portal while you are outside Australia even they use passcode to verify its you. It required user to have sufficient funds for prepaid balance, not able to set auto topup, yet block user to login to their account while in overseas.
