Originally Posted by
tauphi
My passport is due to expire next year so I'll get to find out what happens then. I'm hoping to be able to keep my current account, surely there is a way to update the ID number without abandoning the account (though it may involve a visit to a train station somewhere).
I just logged onto 12306 and it appears that you can change your ID number at any time (perhaps because it is unverified).
It’s easy to just delete your entire account and reregister. Should fix any and all problems.