1) I'm still using the cell number ending with 3322. This is a a Singapore cell as I'm a Singaporean citizen and lives in Singapore.
2 till 4) No to all. I've never lived in USA, don't pay US taxes and don't have US social security.
I'm on holidays presently so if no number appears in my cell, I don't pick up the phone. You may contact me on 4th Jan as I should be in Singapore in that date.
Lastly, I don't need the account in Thailand as I've sold my property there. Please let me know if you can act on my email instructions and close the account. If there is any credit balance left, I can use the ATM card to withdraw it in Jan as I don't have the ATM card with me during my holidays.