It is really nice to see a letter praising an employee by name for good service. I hold Khun Burin in high esteem for producing letters that always get his point across in an impartial and positive way.
I note, though, that letters critical of companies seem to be few and far between, perhaps out of a general desire to avoid confrontation – or possible legal action.
In my own case, I have not yet received a response to two e-mails I sent to a national company (its name begins with a digit somewhere between six and eight), regarding its policy on plastic bags.
Ewan