Thank you for your input ma'am.
Sorry ma'am, after reading my mother's review, we checked again the air conditioner in the room there was no sound like what you said, because the room was just replaced with the air conditioner only 2 months ago.
For draining the sink water, it doesn't get clogged, it's just that you have to press the lid first and then the sink water can be wasted.
For the pillowcase, after checking the pillowcase, there is a small tear the size of a thumb, we will fix it. Thank you
If there are indeed white towels and some are slightly yellow, maybe by chance you got a yellow one.
Thank you for your input, in the future we will improve it for the better.