Dear pacharanatwor,
First of all, please accept our apologies on this matter. We did check the external pipe outside the room and we didn't inform you back on this and made you feel no one take immediately action. And we have blocked your room and do the permanent fix on it, it will not happen again.
We would like to welcoming you back again in near future with the improvement experience.
Regards,
Chonthicha kaewchaluai
Executive Secretary to General Managre