Well....I agree Nozspark - I did think about just declining the job but I am slowly being accepted by the company as their first choice electrician, it is just that the PAT testing has come up and naturally I don't want to turn it down and risk not getting any future work. It may be that I have to treat it as a loss-leader.
maybe do it this time, see how much other work you get off them in the next 12 months and see if it's worth it or not!