Applying for a Chinese tourist visa in the UK

I too am confused about the fees and the process there appears to be so much conflicting information, I am assuming that the £151 total for an entry permit mentioned above are available if applying at the CVASC’s London office without incurring the £66 service charge on top of the fee?

Its mentioned that its £175 for a postal service £24 more per visa, is there a admin charge if the passport is posted back on top of the postage to avoid a second journey to London?

Can I deliver my own application and my wife’s or does she need to attend in person, also can I collect both passports?

All information gratefully received