can anbody help please,I have a property which i rent, it has just had a safety inspection which a few items where picked up. one being no local isolation switch for shower fan, code 2. this is on the ground floor of the property in a room with a half glazed door letting in natural light is this switch required? if so has the 3 pole isolater got to be wired before the normal switch? or can you take the wiring from the fan through the switch? also in the electricians report he has picked up no cross bonding under kitchen sink code 2, which i have been informed is not required under section 16 as long as the bathroom sink has bonding is this correct please? also no continuity on upstairs ring code 3, could this be a radial circuit? as the property was only rewired 12 months ago (before i purchased it) i was very surprised it failed on these items he has estimated £460+vat to carry out these items does this sound fair please help i feel i am being ripped off