I think I'd better ask for the cel number then.
However, I can't ask the seller myself(Firstly, I 
didn't got an account on Yahoo!Japan, I just ask 
my friend to help me to bid--my friend seems 
can't go back home in time before the auction 
end ; Secondly, I cannot type Japanese, I didn't 
got the software)

Anybody can ask for me? Please? T_T