Can you get new pages inserted in a UK passport?

If yes, where and how many pages?

What does this cost.

Beginning of February I need to go to Poipet for my last 90 days on my Non O (been before, so that is no problem) but I would like to know directions where to go once I am over the border in Cambodia to use an on-line visa (this to save on the 1 page stamp).

Because of the holidays and the Royal Wedding and stuff in the U.K., I'd like to extend my stay in Thailand using Tourist visas. Preferably 2 to give me the extra 180 days maximum into October or so..

Where in Cambodia do I have to go? Can I do that at Poipet?

How many pages do I need in the passport for 2 Tourist visas in Cambodia and the relevent stamps in and out and at Immigration to extend the tourist visas for the extra 30 days each?

Thanks for any input to clarify this for me. Will help me decide my next moves

• UK does not add pages must apply for new threw Hong Kong. Lao not Cambodia issues free double entry tourist visa until March 31.

As said you cannot add pages and have to apply for a new passport in Hong Kong.

Apply by post . Details on the UK Embassy site.