Dear Linh Truc,
Firstly, thank you so much for your staying.
1, About the sofa, we clean it everyday but some previous guests wet the cover and it cannot erase. I'm sure that it's stain not a dirty thing.
2, We always respond if you need any information or support but we did not hear anything from you. We have about 20 apartments here and I can not meet every single guest myself. this is my brother and Sorry if you feel uncomfortable about that.
3, I think that you mean you want the taxi goes on the sidewalk? But the rule of building does not allow any vehicle reach the sidewalk, the sidewalk is only for walking and I think it's a civilized thing.
See you again and I hope that we will serve you better next time.
Thank you and best regards,