Tai Tong Hotel 金 成 酒 店 (美塞)
6 Moo 7, Phlyothin, Chiang Rai, Mae Sai 57130, Thailand; MAIN ROAD = Phlyothin
https://www.tripadvisor.com.tw/Hotel_Review-g303913-d1402934-Reviews-Taitong_Hotel-Mae_Sai_Chiang_Rai_Province.html
Some beds are tbd600/night
The others are tbd400/night, if live 10 days, the price will be tbd300