Hi LJH,
You understood correctly. Plus, I also have a fapiao on my name, issued expressly by demand of those Tianjin bureaucrats.
You are also right about the book. What I have is the tax paid book. Sorry for the confussion, I wrongly assumed I was the proud owner of a blue book.
I will do as you say and contact these guys, thanks for the invitation to leave the bike through the process!! I will come back when I get their answer.
Thank you very much,
Gorka.