I think we got the bottom of all our worries, the cheap litter that was given to us is full of dust, they must have eaten their wet food, gone straight into the litter tray and come our looking like cross between Hitler and the Joker out of Batman!
We have just spent 30 mins with luke warm water cleaning them up look much better and the kittens i used to know
I have introduced Whiskers to them today, we are getting there shall we say, so far jelly has all gone and now trying to eat what's left over. They love the boiled chicken we cook for them, 6kg of drumsticks at a time and frozen to last them for a while. They do get other food too, Ham, Turkey, fish etc. Other half is a chef so lots of goodies from the kitchen, any wonder they have become use to Gourmet food. Now paying for our price but will get there slowly.
Thank you all so much for your wonderful advise.