[monoceros]

Just advice for anyone going to Thailand soon.

Don't just use your roaming, get a Thai SIM card at the airport, then register Line in Thailand.

Currently Line doesn't accept registrations from Singapore phone numbers. if you maintained Line app for a long time, didn't change phone etc then it might work for you, but generally if you freshly installed Line you cannot register your SG number.

You can technically install the app and add contacts, but the contacts will not be able to read your messages. So sometimes if you think people are ignoring you, it's actually because they didn't receive your message.

If you install the app once in Thailand, with Thai SIM and register then you can send messages normally.