Participante anónimo 129 wow, I first I thought the OP meant 1,199B per year, not per month. I paid around 2,300B for the whole year when I bought mine, DTAC, in October.
s in the provinces won't sell any sim to foreigners, according to many reports. Except those intended for short term stays, that are comparatively more expensive.
It depends on the other country also. For example some US or other countries forms for visas have a check box that says "I don't have a last/family name". But if there's a family name space, and it's marked as mandatory, like this case, you'll have to input something or it won't just make it to the next screen.
Many Asian people don't use a family/last name, at least not like we use it. If they don't have one, it won't be shown on the passport. I have friends from Indonesia and Burma with no family names. That Indonesian friend told me "some Indonesians" do have family names, but not all. Said so, Aye Chan Phyu and Koh Kwang Yee can be brother and sister, children of the same father and mother, despite not having any word in common.
The Myanmar passport has only one field for "Name", whatever name the person has, it's written there in a single line. So if somebody's name is, Aye Chan Phyu (for example), that person could argue any of them are their "last name", if needed, but the passport doesn't specify. I don't know if they have changed it recently, like 1 or 2 years ago? But all "old" passports that haven't expired remain still valid and legal.