Got mine done but only after contacting dealer tech support. Every dealer I went to wanted to charge me, the rattle precedes failure, in my case the oil chain snapped. Two engines later (long story) and a new turbo courtesy of Honda. Every dealer told me I was on my own and it was only when I went in with a technical bulletin having contacted Honda UK did I get anywhere.
Car was two years out of warranty. This is extended up to seven years. Even with the new engine it had to have new injectors new chains and a host of other things replaced. Chain failure was caused by the car running rich hence the clouds of smoke every time I accelerated. According to the bulletin excess carbon caused by faulty injectors contaminates the oil and causes the chain (usually the oil pump chain) to fail. Dealers were told to check cars when servicing for any rattle and report to Honda for authorization. Not one dealer knew about it. Gordon Lamb Chesterfield, Holdcroft Honda, or Retford Honda ( Retford Honda were the ones who did listen to me though and were happy to do the job). Timing chain should last a LONG time.
Oh and yes I got the "it has not got full Honda service history " no warranty from every dealer except Retford Honda. Honda UK said it is NOT a requirement so long as you have it serviced and the book is stamped.
I have the Bulletin if anyone is interested..