The pads are £13.99 to me as a punter - how much are they trade?

Thats a lot of fuckin labour for something which will take a 'trained' (note not skilled) mechanic with the right tools 45mins tops to do.

My hour and a half included going and buying the caliper rewind tool from the local spares shop.

£40 would have been resonable ( baring in mind they wanted the car all day ) and £50 for a drive in/out service.