Dear Xiaoping. We would like to thank you for the review. We are sincerely grateful that you like our room. The apartment have not reception so we contact with customer by telephone, messaging, email. And Joy cleaned the room. Therefore, to meet customers while Joy clean, too. However, during your stay you do not have a phone number in Thailand. But I was trying to get into the apartment more often to meet and greet you. When you check out, you forgot the hat. I was ride a motorcycle in a hurry for follow you but too late. I tried to contact you by email. When you reply to emails we can brought the hat to you at another hotel. So for Improve communication to customer now we contact customer by WeChat too.