induction

I've bought a new Samsung induction hob which has 2 lives and 2 neutrals. The existing wiring to the standard electric hob has 3 lives and 3 neutrals in 3 sets of wires joined together (3 cables taped together with the 3 neutrals twisted together from each to form a single neutral). I can't...

Hello. I've just had an induction hob fitted, a Hotpoint with flexi space. After first use of a new frying pan and 3rd use of a new saucepan, some weird marks have formed on the pattern of the hob ring, they have turned a silver colour in patches... see photos (very tricky to pick up in a photo...