In May I bought a 2009 Citroen Berlingo Multispace. On the day I collected the car, I noticed that the owner's handbook was missing. The salesman said he would sort one out for me and be in touch. Despite several unreturned phone calls to him I'm still waiting. I've even spoken to the dealer's parts department, who say the handbook's on order. All I can get out of them is that they're experiencing problems with Citroen themselves. What would you advise as my next step?