Question Author
thanks for all your answers folks, i thought it was a bit much, fortunately mr cat has survived and doing well and is back to his usual appetite, with a few treats here and there. and the fridge door sensors restored to the usual.
i was a bit peeved that the cattery changed the regime. it didnt cost us any more for the food, so i guess it was their loss. fortunately mr cat came out fine.
you are all right, i shouldnt put my faith and the life of the mogster in the hands of this cattery again.
cheers
mr kou