Thanks The Searcher. Great information.
The link you provided is excellent.
If the rank-and-file were to become aware of how big the surplus is, donations would noticeably dry up.
When I was in 'the truth' (sic) it would've certainly stopped me from contributing for the forseeable future.
In the 4 years recorded in the link, the Income is a total of £634,026.
The Expenditure is £29,279.
Assuming a bank balance of NIL at the start of these 4 years gives a healthy profit of £604,747.
Shame on them.
Come on Charities Commission. DO SOMETHING.