Snappy Tom Dry Cat Food?

I have just found out Snappy Tom dry cat food has been discontinued in the market, anyone know if and when its coming back? My little cat is getting so skinny because its the only dry food she will eat and wet food is just not enough. I've tried all sorts of other brands, including the expensive ones and she just wont eat them. Anyone got any other suggestions for a brand for fussy cats? Ive tried Royal Canin, Iams and most of the supermarket brands. Thanks.