Been doing work on a farmhouse and shes had one or two blokes doing various rooms before they got plastered. She was told in good faith that they were bona fide experienced sparks and she paid accordingly anyway i was asked while i was there if i could have a look at a two way sw which is part of a 4 gang i removed the face plate and all the earths cut off at the top of the cables which are feeding outside lights and indoor metal fittings . This was supposed to be rewired only 3 years previous and the 2 way is brown /grey /black one end joined to the old colours apparently while she had her central heating renewed they recommended their competent spark to rewire at the same time while the boards were up his name by the way was rewire ray ! Couldnt pull any slack down to earth the boxes it seems to be plastered in no capping . What course of action would you take because i believe im going to open a can of worms up and what do you say to the client whos already paid good money out.