The Postmaster U.S.A. vs Thailand, who is the real 'MASTER of the POST'

🇺🇸 Mailed a letter to a major bank in U.S.A. It was a check for a $5 tax refund.

•  Listed the street name, but forgot to list the direction like S.W. or N.E. 
• Over a month later the letter was returned to me "ADDRESS DOES NOT EXISTS." 
• the situation could have been resolved by referencing the bank name

🇹🇭 Discovered a photo of an envelope with my name and address in English in online messenger.

• Man did I freak out and immediately requested to know from the sender  the "1. who, and 2. why."
• The reply: 1, postal employee. 2. Unable to translate the English text  address.
• I sent him a photo of the address on a  thai utility bill.  The envelope (income statement for tax purposes) was in my mailbox the next day

สกลนคร Sakon Nakhon