indonesian transit xiamen airport

I am an indonesian women traveling from netherlands to indonesia. I am in transit at xiamen airport for 11 hours. Xiamen air says that i need a transit G type but i dont think i need it because i am less than 12 hours at xiamen i am not leaving the airport. I called the chinese embassy they dont know for sure but they dont think i need a visa. Can someone tell me if i need it or not