Dear K.Natnicha,
Actually I have informed last time,
but you never show the welcome board many times.
And when I informed to book the car,
you also forgot to arrange the car and never apologize.
Just keep quiet.
Is it polite? your style is correct?
That’s why I stopped to inform you anymore.
Anyway I will restart to inform you.
Hope you will be polite and do your job properly.