Is there anywhere online where written confirmation can be found from an official source of some sort that a Chinese visa on an old British passport can be used in conjunction with a new British passport to enter the country?
The Chinese embassy in the UK states that the visa won't be valid:
The Chinese visa application service in the UK website does not touch on the issue as far as I can tell (a visit to their London office also displays no information regarding this and based on previous experience I don't trust the receptionists to give a knowledgable answer):
This previous question says that it should be okay, but it is the website for the US embassy so can I be sure it applies to UK passport holders?
Should I be able to get confirmation either from my airline (I couldn't find anything on their website) or Timatic?
Maybe I'm worrying too much but I've not really been satisfied by any source saying it's fine yet, especially given that the UK embassy advice hasn't changed.
UPDATE: I can confirm as Timatic states that there is no problem to use a visa in an old passport when you have both the old and new passport (with the proviso that no details such as gender or name can have changed between passports).