for my German pension i have a App I upload my passport then follow instructions with a short video of me moving my head left to right and up and down.
We all started at sometime with no idea what to do, some people are OK with a computer or with a mobile some are not, you don't get stupid questions only stupid answers, so if you don't want to help keep quiet, it's easy really.
also not correct, I'm on a non o extension live in TH more than 180 day's and pay tax, I don't know why people think TH is a Tax free country, it's all on the revenue website or just visit them. Some people don't have to pay tax some do, it depends on your personal situation.