Thanks to all for responding.
Thanks Stacy. I will be sure to contact you on any future problems.
(I had not taught about going to another floor! XD )
Fortunately, contacting the them by email seem to help.
Now, the ceilings of both stalls look better than before.
maybe, we can send another email about the water leaking form the second toilet.
[ Thanks also goes to the person who fix the stalls!